I think you need some discipline. Ups and downs prove nothing about your skill or lack thereof. If your honest with yourself you'll have to admit that you haven't proven that you can win consistantly at any level. Probably not even $10. It looks like you're in a rush to take on Durrr at Ivey Heaven $500/$1000.
Relax. Where's the fire? I'm not saying you need to drop down to $10 nl, but there's no shame in that. Play a limit you can afford and stick to it untill you can show a winning rate of say 10 BB/100 over 20,000 hands or so. Remember, this isn't a race and this isn't a competition. It's a skill that needs to be honed.
As far as the tourneys are concerned it really depends apon your skill level and what size tourney your comfortable with. If your cashing in say 20% of the MTT's you play, then you might take a shot at anything up to $5.50. Even at this, chances are you'll bust. If your cashing less than that then chances are you'll bust nomatter what limit you play. That's just the nature of the game. Most poker sites
report that less than 5% of all their members make money in any given year.
My best advice to you is that you read some of the better member blogs to get an idea of what is involved in becoming a winning player. You'd be surprised at the time and effort people like F. Paulson
and ChuckTs (http://chucktscanadiandream.blogspot.com/2009/03/my-week-so-far.html) put into improving their game every day. You might just decide that it's not worth the effort and resign yourself becoming just a very good recreational player. Drop 50 bucks a month into it, have a good time and don't expect the world.