Birth control

What’s the best birth control/experience? I’ve had the implanon since I gave birth but it’s MESSING me up I’ve had constant bleeding, like a period that’s 3 weeks on and one week off, and the week off is filled with light spotting anyways My mental health has taken a plummet and I have big big mood swings I want to get it taken out, but I’m only 22 so I don’t want to risk having another baby for the foreseeable future.