Birth control

I’m 17 and I’ve been wanting to get back on birth control for an extra sense of security. Last January I started with the depo shot and had it for 6 months but after March I was just non stop bleeding for the rest of the year till November and it started to cause other health problems like swollen lymph nodes and things like that. I then went to the pill (microgestin) and same thing ( stopped in November). I wanted to try an iud but I’m not real comfortable with the thought of a piece of copper in me. So if anyone has any solutions or advice on what would be better, that would be great!

Thank you!