Implant vs IUD?

So I used to take the pill, rather many variations of the pill, and it never worked out the best for me. I had to switch doctors and my new doctor wouldn’t prescribe them to me anymore, so I just stopped taking it for like, three or four years now. That was before I was sexually active. Now that I am, I’d like to get back on some form of birth control. I know the pill never was the best decision for me, so I’ve been leaning more towards a hormonal IUD or the arm implant but I’m having a tough time deciding which way to go. Anyone who has either of these, what has your been experience with them and would you recommend either?