Started playing online poker again (surprise)
But I cannot find any leaks but keep losing.

Leaktracker on pokertracker does not give me any information.

What are standard leaks for beginners/novices. I don't consider myself an experienced player.
My feeling says: I call too much and lose, and when I got valuehands and don't get max moneys

Thanks in advance!

I’d start by posting your stats on the stats checkup thread, as long as you’ve got a few thousand hands to work with. What stakes are you playing at? It’s a bit of a cliche but still at least somewhat true, that a lot of micro players call too much and don’t bluff enough. Your strategy should seek to exploit this - so bet (big) rather than slow play/ induce bluffs with your strong hands, and make big folds against aggression, and be wary about bluff catching.

Also get some solid preflop ranges down - tight is right for a beginner, especially in high rake games, but don’t go ridiculously tight. Have a look at poker Snowie preflop advisor (free) for some suggested preflop ranges. You’ll want to adapt these to the games you play, and to specific villains and stack sizes, but it’s a start.

- Considering the number of hands. My total is 40k , but this concludes the hands played in 2017 and 9max. I don't consider 2 year old data as date to learn from.
I have only 2.5k hands on the 6max ZOOM i play right now from beginning of this year(ZOOM is possibly not the best gamemode, less fish probably). Most likely not enough.

- I often find myself in a position where I think the villain has literally nothing, I bet on the river and he calls. Ending up losing the hand. I dont think the bluff is the problem. But most likely not maximizing results when I have something. I always try to ask myself the question: what is the maximum amount of bet he will call, given the fact he has xx hand.

-WHat do you mean "te some solid preflop ranges down". I have quite a feeling how the ranges are. And calling pocket pairs is nearly a no-brainer when 2 vilain are in the pot. Folding is a no-brainer too when 2 overcards come on the flop.

- Will take a look at Snowie

BTW a gut feeling:

I don't think preflop is the issue. Postflop is the problem and I find decisionmaking extremely hard given some situations.

Don't underestimate how much preflop mistakes can f**k up your winrate.

Been googling about ZOOM.
Seems like lots of bloggers and "saying-so-winners" have th eopinion that ZOOM is way different than normal games on the same stakes.

They even consider it a nitfest, which seems, to me, that a normal gameplan (constructed on the normal stakes) would not fit as someone is always on the top of the range.

EDIT: one of those guys is BlackRain79. Im always skeptical about people writing how to win. If i was a winner, i would definitely NOT share it as it grants losing people the opportunity to know how I play which ultimately results in less profit for me

Bluffing into players that don't fold sounds like a problem.

Whatever your reasoning here, some of the biggest crushers the game has seen have made coaching videos and written articles. Galfond and Sauce123 to name a couple. It's not like they're in competition with people trying to learn 10nl.

you most def severely mess up pre
correct pre flop play isn't nearly how straight forward you think it is

there's no quick fix to your pre or post but a good place to start is Matthew Janda books
study up on these 2, post hands on this forum and have patience. with time, some things with click for you, as they have with the rest of us.

This. I bet there are some obvious "problems" with OP's stats. I mean, I can see leaks in my own numbers, and I'm +EV in zoom. Although the bulk of the money is made post-flop, the mistakes start pre.