Is this WAY too high stakes?

2 days ago I won(!) a $150 freeroll at casinoeuro (PokerRoom Network) after a lot of luck and a pinch of skill.
This gave me $37,5 and started playing $5 Shorthanded Turbo Sit and Go's(5 handed pays out 70%-30%). Here is my plan and results:
Bankroll Buy-in Results (place)
5,5 .... 5+.5 ... 1,2,2,5,4,3,1,1,2,5,1
80 ..... 10+1 ... 1,3,2,2
200 .... 20+2 -
400 .... 30+3 -
800 .... 50+4 -

Current Bankroll is 102,8 (I've been playing a little $10 NL cashgames too).

Is this a WAY too steep "limitjumping"? (I am very impacient with a very small screen, thats why I play shorthanded and not multitabling).

I would like to recieve all suggestions from all players.

generally, you play with no more than %5 of your bankroll at one time, but starting out with a very small bankroll, it's perfectly fine to gamble at the higher stakes if you can afford it; it takes forever to grind out say $50 at a 1c/2c table.

I just lost 2 $10+$1 in a row now. Leaving a big trace in my bankroll:S
Think I've played enough poker for tonight now. I'll watch France vs. Portugal instead!:/