On your HM2 reports tab go to the stats and search for standard deviation and add it. Go to that poker variance calculator
@Discomfort linked and you can put in your WR and the SD and it will tell you what expected results will be over x amount of hands, so you can put in 50k, 100k, whatever you want.
I took your winrate and put it in with a Standard deviation I found from an old database i had. It basically said that your chance of losing over a 50k hands sample was ~.5% So I would say that the chances of you being a losing player is probably pretty small, but your sample isn't huge yet, so that WR could be skewed. IDK tbh. You probably want to do it with what ever SD your database has.
I think when in the micros there are more advantages of moving up quicker to build bankroll faster, so for me personally, I would worry more about the bankroll management then getting a "true" wr. You have a good wr over a decent sample. So if you have a big enough bankroll, taking shots might be a good idea, but hard for me to say, that is up to you really. Beyond just building roll faster you will probably learn more as you move up and as the competition gets slightly better and you start to get into spots you haven't before and start to experience different levels of play.
Not sure what stakes this is, but if I were you and I had that wr and a bankroll of above 40 buy ins for the next stake I would move up. I tend to be more conservative on bankroll management. Other people do whats called shot taking, where they want to have say 50 buy ins at the stake they are playing. So if you are 5nl that would be $250 @ 50 buy ins. When they get 5 or 10 buy ins worth of the next stake up, above the $250, so say at $300-$350, they take a shot at the higher stake. If the bankroll falls back down to $250 they drop back down and grind it back up to that 5 or 10 buy in shot take and rinse and repeat until it sticks. Some people are more aggressive with this and might have a bottom threshold of only 40 buyins, or 30. I think I even saw some guys using 20 buy ins as there threshold. I tend to wait until my entire bankroll is at a certain level for the new stake and to know that I am a winning player at the current stake then I move up. When I went from 10nl to 20nl I started with a mix of tables too. Just for me personally, wanted to see how games were if there were major differences etc.
I don't actually think your numbers looks bad from the CO, so could be a variance thing that your wr is low there. What kind of sticks out in the CC% is that they are all almost identical in MP, CO and BU, which would lead me to believe you are playing almost the same exact range from each position, on average. IDK i would look at that. Just like your 3b% gets slightly more from each position I think your CC% should as well. I think your CC% from the CO is pretty near where mine is in my default ranges, but my MPvUT is lower than that and my BU is higher.