I have had the same problem with bankroll management. I play poker to win money so if you are a beginner (started playing 8 months ago) you find yourself depositing and depositing each week depends on how much you are playing. I knew I needed that one tournament, that one big cash. It took me 8 months of looking the right game! Now that I have a descent bankroll, I maintain strict management. I try to take only 5% at the table.
Once in a time I play MTT but not much. I try to win short field tournaments. They have a higher buy inn but you can sattelite your way to them!!