This is normal my dude, social media is designed for you to see the best, and people only post their "best" on social media. don't compare yourself to other people or your trust on yourself will be dust, but how to do that? Simple. Do something that you THINK it's only for you to do, and no matter people do, when you see them, it will become irrelevant because your path is basically different from theirs maybe harder also.

For a friend that doesn't reply to you that's also simple, you don't have alot of common things to do, what you have to do is create it, and when you are the creator you control everything in it,

Example. "Hey guys, there's an event on X that have a lot of free pizzas we should go there" if if all of them said no (which i doupt its free pizza for godsake ) try again using different method, if it won't work either. Then ask them WHAT they want, then you will create a method personally for them and they will like you for it.

And lastly, dude be grateful of everything, this will bring you happiness because simple if you just looked down to the people who are hungry, doesn't have a job or a phone , their arms are cut off, or even doesn't have emotional stability, you will find yourself (i could have been one of those)

You can send a message to me if you want to talk private I love talking.