No I dont feel like a "loser". That is such a personal and emotional statement, and it makes no sense looking at poker in this way. If for instance you play a 45-man on
pokerstars, then 7 people get paid, and 1 out of 45 has to be the 8. place finisher AKA "bubble boy". So statistically speaking if I play 45 of these, on average I will be the "bubble boy" in one. And if I play 450, I will be the "bubble boy" in 10.
And why is this even that important to begin with? 37 other players also failed to cash, and a min-cash is only 4,38% of the price pool, while the winner gets 31% of the price pool. So is finishing in 7. place really all that different from finishing in 8. place? Not really. Its still kind of "so close but not quite", since you could have won 7 times more, than you actually did.
So my advice is to stop focusing on the outcome of individual tournaments and on false achievements like "not being the bubble boy". Focus instead on the long run and making solid decisions in every hand, and then results will automatically follow. Maybe not today, this week or even this month but eventually.