What birth control worked for you?

I know that everyone has their own preferences in birth control and everyone's experience is different. Truth be told, I have never been on birth control. I'm not all that sexually active and some of that comes from having vaginismus, psychological troubles due to abusive relationships and experiences, and growing up in an extremely sex-negative home.

I now decided to get back into the dating game and hopefully meet someone nice, even in a casual way. But I want to be on birth control. I originally settled with the implant, but I'm afraid my insurance won't cover all of it and I'm trying to do this without running into financial troubles. Plus, I'm afraid of side effects.

I also thought about getting the shot since I won't be left behind with scars and it lasts for three months so it isn't too bad. Nevertheless I'd like your opinion. What kind of birth control do you take and how has it worked for you? Did it cost much? We're the side effects too overwhelming or easy to manage?