Holly, if your baptism was valid, then, yes, you are "eligible" for the sacrament of confession. In fact, people are encouraged to go to confession as part of their preparation for Confirmation.
I would encourage you to stop for a moment and reflect, though, on what it is you're doing. You've obviously been seeking to understand the Catholic faith better (along with some others) and have intended to convert to it, but have thus far done so in a very....err..."uncommitted" or "skittish" fashion, and that's no good. Certainly doubt is a normal part of everyone's life, especially as they are examining something new, but there is "doubt" and then there's constantly jumping from one lily pad to another to another, back to the first and on to the second again, etc.
Before you go to confession, I would really advise stopping and thinking about what you're doing first. Intending to become Catholic and then getting baptized in a non-Catholic Church, and then wanting to go to confession...

...
As many have advised you, slow down and take it one step at a time. God will not run out of patience with you. But if you start jumping around all over the place spiritually, God Himself will look on in sadness, unable to do much good for you since you won't stop and listen for His voice. At best, you'll not profit, and, at worst, you'll end up doing yourself harm.
Peace,
Greg