These streaks are inevitable, whether you are good, mediocre or bad at the betting medium.
At the stakes i play for poker, i would state confidently i am a top 5% player within the competition. Yet, in the past 4k hands (tiny sample size) i am down over 15 buy in’s. What is somewhat unusual is my all in expected value is actually around the same as my total loss over the sample size(usually long losing streaks are well below your expected winnings, naturally, and often a during a large losing streak i should have been profitable in expected value during that time frame). I feel i’ve played quite well outside of a very small stretch during those 4k hands inspite of my poor expected value. I just happened to run into the top % of opponents range regularly, just another form of variables (word luck sucks).
The point is, these streaks are unavoidable. Poker is a different medium to horse racing, but given the games i play it is possible to be all in pre-flop with the best possible starting hand and only have 55-60% equity versus one villain, it is vital to maintain perspective. I don’t gamble in horse racing, but i imagine you’ll have a few large losing streaks per year.
You need to dig much deeper analysis wise to understand whether this losing streak is due to fundamental issues or not.
I know GingerTipster prides himself (or at least his posts suggest!!) on being successful within this field, but i am curious to what he thinks is a time frame/quantity of bets before one can begin to accurately guage your "ability". It is thought that one needs 100k hands at No limit hold’em to truely understand your win/loss rate, and more for pot limit omaha.