How should I go about getting rid of my tan lines?

I have been wanting to start tanning in a tanning bed but have been a little intimidated by it. Right now I do have a mild sunburn on my shoulders, chest and back but now I'm going to have ugly tan lines, which is what I wanted to avoid by using a tanning bed. Once my sunburn calms down I was thinking I could use the tanning bed to even out my skin but how long should I wait before starting the tanning bed? Am I gonna end up being 10 different shades at once? I was thinking of using sunless tanners as well but I'm naturally very fair skinned and they always look orange on me. I'm guessing that's just because I'm so light skinned and if I got some color on me from the bed first they wouldn't look so orange-y...? Once my burn heals should I exfoliate it a lot to try and get as much color off as possible before starting the tanning bed?