Define alot......
Depends could just be normal variance or could be you just sat down and decided to play 100nl+. Which if you did sit at 100nl+ I would fully expect you to take a dam good beating. Just because one as a newer player might have the
bankroll or make enough at his day job to be able to afford to play 100nl+ doesn't mean he should. In fact he certainly should not start at 100nl.
2nl and 5nl. If you can't beat or adjust to beat 2nl and 5nl you're only throwing money away playing higher. And you simply just don't learn how to winner at poker over night. It's a journey that takes time, hard work and study.
Lacking further details from you I'd also recommend Jonathan Little(link below). There's also plenty of other decent free stuff on the internet(you-tube).
Learn to play like a poker professional. Get coached by elite pros. Learn all the poker fundamentals. Practice with simulated poker hands. Make the right decisions in game. Have confidence when you play.
pokercoaching.com
Also get a HUD even if the site you play at doesn't allow them. You can download your hands into the HUD. There is no better or easier way to study hand histories. I like and prefer Poker Tracker 4(link below).
www.pokertracker.com
Cheers!!!