I am copying and pasting from my low inhib max thread. For your case I think you really need to zone in on the drugs, though. Its the most extreme reliever.
1) Experiment with certain drugs that lowers inhibition. Such as MDMA, Xanax, SSRI, etc. You can just look up "drugs that help with social anxiety/anxiety" and you are good to go. You could get some over the counter, some through prescription, or some may be illegal. If you are unable to just go up to a local drug dealer you can just look up how to get into the dark web and what the drug selling sites are. I am not encouraging illegal activity, though. Try to avoid going the illegal route, especially if you haven't even tried the legal drugs yet.
2) Drink alcohol. You are supposed to be much more lower inhib when you are drunk. There is a reason why #1 and #2 are very common at parties. Easy short term ways to strongly alleviate anxiety.
3) gymcel. Search up the correct way to work out and nutrition and you will greatly increase your strength and muscles. Worked very well in my case. Although I'm sure most users have already tried this. Still, you can't deny being frame mogged to oblivion by every man takes a toll on you mentally. The other way around will help you feel comfortable and you could gain compliments, from men and family. Also make sure to do your long cardio as well, very important in making you feel more relaxed and low inhib.
4) Train MMA. Few things can lower your inhib then knowing you can kick most guys asses whenever. Worked to a small degree in my case thru wreslting, but it would be probably be much higher if I was actually good at it.
5) Carry around a good weapon. I recommend sock-n-lock. It is legal everywhere, just don't carry it if you're in a "pat down" type situation, it might look suspicious. But for 99% of the time and at any country you are good. One hard swing and someones skull is legitimately cracked opened. Very hard to defend against and long range for you. No real reason to be scared of just about anybody unarmed. Just get a big stretchy sock and put a lock or a small and light metal object deep on it. You can wrap the sock around your hand if you want a tighter grip and control over the weapon, at the cost of some range. Helps to give peace of mind. A gun would be even more powerful but half of you aren't in America and you have to use it much more conservatively.
6) Act or pretend to be confident until it seeps to your mentality a little bit. Worked to a good degree in my case. At the very least all you have to do is not slouch and look at the ground like a beta. Look high, pump out chest, and walk comfortably. Swing your arms. Speak slowly. Goes back to my case before, just force your body to not act exactly like the "virgin walk." This alone will give you some benefit of the confidence halo, because you are acting alpha. Studies prove doing this makes you act more powerful.
7) Improve your looks. Self explanatory. Have surgeries such as nose jobs to fix jew nose, use best fashion possible, do everything possible to fix acne, etc. Kind of common sense.
8) Related to 6, just psyche yourself up to be temporarily confident. Like keep trying to tell yourself that you do not give a fuck. Although this is pretty low common advice. Just typical "think positive" and cut out negative thoughts jargon. Try to accept yourself. Attempt to rock your flaws or believed flaws if you can, like how some midgets joke around with their height or leverage it. Don't take that joking yourself trick too far, though.
9) Be depressed. "IDGAF" will be entrenched in your mentality. This should be natural to lots of incels. If not depressed just look at lots of suicidefuel lul.
10) Try nofap. Going a few days to a few weeks will affect the inhibition of lots of guys. Some guys feel almost god-like from doing it compared to before, essentially zero inhibition. Others feel nothing at all. It is different for everyone, but the extreme effect in some cases seems to me like there is more than just placebo. You can't fap at all or look at porn. You also need to sleep on your back or side to avoid wet dreams. You got nothing to lose from trying this if you want to try everything possible to remove your inhibition.
11) Watch your diet, avoid fatty/sugar foods and try to be as healthy as possible. Green tea for example is allegedly good for this. A good diet will lower your pressure and cause to be far more relaxed, thus lower inhib.
12) Try to get a good amount of sleep and keep your stress levels low. More relaxed = less inhibition.
13) If you're currently dealing with bullies, you need to deal with them. #5 may be very good in this case for self defense. For more longer term do #3 and 4.
14) Achieve something. Feeling more prideful is natural after accomplishing something.
15) Listen to bass-heavy tunes, such as rap. Also proven to make you feel more sure of yourself.
16) Meditation, similar to why diet, exercise, sleep, etc lowers your inhib. Some yoga poses, such as tree pose, do help me out.