I feel like I’m going to lose my sanity.

Maybe you're trying a bit too hard. You do need to get out and make some real friends out in the world. Maybe just one that you can relate with. Don't stay in the house, get out and go somewhere. Friendship could be just around the next corner.

Asking people online to hang with you makes you seem too needy.That's most likely why people don't respond to your request...I know I wouldn't. You have to develop a relationship with a person before you ask something like that...to learn whether or not you have anything in common. Asking strangers to hang out with you seems needy and desperate and that chases people away...especially online. You need to work on your confidence and social skills while you are so young. It's your responsibility to make your life better as it is everyone's responsibility.

Get off facebook wahtever you do. It's nothign but fake and your are only accepted if you have a social life or are kissing the ass of society. Im in a similar situ to you bar I got out with fmaily or I may pop down the boozer on my own and have a few beers. I like it that way though 😎 I do empthasize as I went through exactly the same until I learned to accept my situation and live for me. Your best friend is yourself 😎

I have always found that new friends are made mot easily when I find a common activity. Like there are running clubs, or hiking clubs, or sports clubs, etc. Anything you join up in a common activity, I find its pretty easy to meet people who can go on to become better friends.

Yep, making friends as an adult is nearly impossible. That's why a lot of us browse sites like Similar Worlds. Some human interaction through a screen is better than none at all.