Hello,
I'm playing Omaha8 tournaments since the End of April and these are my results (including also stats from the last three years, where I played some times Tourneys just for fun while playing cash game).
My winnings are about 7K; I had reached this amount already two months ago but had a down swing in which I lost about 3K and won it again.
I paste my statistics from sharkscope below.
Which are the most important stats to evaluate whether I'm good or bad?

Middle Finishes (40%): 36,7%
Middle/Late (20%): 20,9%
First Game Date: 12/01/2014 02:28
ITM%: 21%
Last Game Date: 03/11/2017 07:26
Total Losing Days: 205
Max Cashing Streak: 7
Max Losing Streak: 32
Max Winning Streak: 1
Most Games / Day: 55
PokerStars Tournament Leaderboard Points: 47.120
Av % Field Beaten: 50,2%
Total Rake: 3.043 €
Total Stake: 32.553 €
Total ROI: 20,9%
Wins: 60
Turbo Ratio: 53,1%
Total Winning Days: 93
Worst 100 Streak Av Profit: -9,23 €
Worst 500 Streak Av Profit: -5,17 €
Count: 3.960
Av Profit: 1,74 €
Av Stake: 8,22 €
Av ROI: 46%
Profit: 6.879 €
Ability: 78
Achievement Points: 47
Active Days: 299
Av Entrants: 571
Average Game Duration: 13.759
Av Games / Day (when playing): 13,2
Required Bankroll: 2.205 €
Best 100 Streak Av Profit: 25,23 €
Best 500 Streak Av Profit: 8,09 €
Total Break Even Days: 1
Total Cashes: 46.620 €
Early Finishes (10%): 10,2%
Early/Middle Finishes (20%): 20,8%
Late Finishes (10%): 11,4%

They are good numbers, you have to check the 3K down, with that average of bet it is necessary that you examine if you played your agame, they are 400 BI seems too much to me. Although the sample is small, it is always good to be a winner, keep working on your game. regards

Thank you very much for answering.
In the time where I lost that money I was playing higher buy ins and trying to build a bigger bankroll. Now I'm playing my old system again and it's working well.
I'm working on my game to learn omaha8 and stud Hi low as good as possible because I love these games.
I see some statistics of players who made with MTTs 40K in about 10 years time, that would be definitely not enough for me. I love poker, id like it to be my job and I'm playing full time since about 6 months, but if I see after 1-2 years that I'm not able to make at least 20K a year with poker, that means I'm not good enough, maybe I don't have enough natural talent and I'll give up to play full time and look for another job.

"Elvis said ambition is a dream with a v8 engine"