I know how you feel. Took me several months to take that serger out of the
box. Had DH help me figure it out. Once you have everything working, write
down the tension settings for future reference. Unlike most sewing machines
once a serger is threaded you don't have to do it again. Even when you're
changing cones you set all the tensions to zero and tie all the old thread with
the new one and slide each thread gently. You only have to rethread the
needle. Go for it! :)