Here's a tip free of charge: don't keep a tally of your failed RPs, cause that's literally just a discouragement machine in the forefront of your mind. Anyone who's been RPing for a few years or more probably has dozens, if not hundreds, of failed RPs under their belt, but they also probably can't even remember most of them cause they moved on rather than dwelling on it. 

Think of it this way. If we ranked hockey players by how many shots they [i]missed[/i] and not by how many goals they scored, even the best of the best would look like hot garbage.