This picture was something interesting I found on Instagram. https://www.instagram.com/p/BPWA4zgAuBZ/?taken-by=thinksmartgrowrich
When it feels scary to jump, that's exactly when you jump, otherwise you end up staying in the same place your whole life and that I can't do.
When you are trying to be more social, when you are trying to get out of your comfort zone the above is perfect advice.
I know the advice that you should just do it or you should just go is pretty generic advice and doesn't really mean very much. It is like the advice just be confident which doesn't mean anything really, however, in this case, you do need to just jump.
You are not going to learn how to swim by standing by the swimming pool all day thinking about it, you need to jump in and (as long as you don't drown) try to swim.
You are not going to learn to ride a bicycle by standing next to it all day thinking about riding it down to the shops. You have to jump on and risk falling off.
Children don't learn to walk by sitting by their cot all day thinking about it. No siree, they stand up, they walk, they fall down, they stand up again, they go for a walk again. They literally jump in.
Sometimes when you want to be more social you have to stop thinking about it. Don't overthink it and just get out and mingle.
I've said a few times that you may not be the only one who feels uncomfortable. In fact I am pretty sure that you are not the only. So go to these events with a plan. Hey, even go to these events with a time limit. For example, if you say only two hours then go home after two hours. Just because the party is still going on and the extroverts are calling you names for going home early, don't listen to them. Know your limits and vacate the premises. But remember to jump. Jump in clothes and all, you might get results that you scarcely believe.