Welcome!
It's definitely difficult to make normal friends after leaving. The way we made friends as born-in JWs is not really normal, at least in my experience. Most of my friends growing up were practically assigned to me because they were from strong spiritual families. Making normal friends seems (to me) to be a much slower process and it's hard to get used to. If you're still in school, that will probably make things easier, though since a lot of people around you are in the same boat. The key seems to be just to force yourself to try. If something doesn't work don't get discouraged and keep putting yourself out there.
If you still have some lingering phobia of "worldly" people that can make things difficult too, but the only real solution is to sort of throw yourself in and you'll probably find that not all worldly people are bad people. Some are, but so are some JWs as I'm sure you realize. If you find yourself thinking that someone hurting you in some way is because they're worldly, remember that that's almost certainly confirmation bias. Look for examples of good "worldly" (aka normal) people and you'll definitely find some.
Good luck to you! Hang in there...I won't lie and say it's easy, but it can be done.