I actually lost an entire
bankroll at 10NL with 10BI (lots of tilting, bad hero calls, etc), but redeposited 20BI for 25NL and have run it up to 55BI. I've been crushing 25NL for about 7bb/100+. But since 10NL is probably way worse than 25NL, I can probably give applicable advice. This is readless on Bovada just fyi. But I think in general, it's pretty solid advice.
Value bet more and bluff less are probably the two most useful advice, especially at the micros. Unless you pick up strong equity on the turn, it's usually best to just give up after a flop c-bet. And if the board texture is pretty bad, giving up is okay, especially if you have little equity when called. And don't try to cbet into 2+ people unless you have strong/decent equity (OESD, flush draw, pair+GS/FD, etc), especially A high boards. Fish tend to get very stubborn at the micros with pairs, and they overplay junky Ax hands, especially if they are sooted lol. Barreling at A or K turn cards actually isn't that great either, as fish can tend to get stubborn and float IP and OOP with naked overcards, or get stubborn with 2nd/3rd pair/FD's/SD's/pair+SD. You could have probably taken them off their hand if you fired the third barrel, but it's very expensive and hard to tell if they're just being stubborn with their hand or if they actually have a strong hand.
Light 3-betting is lighting money on fire, as fish will call or cold call with junk pretty often. You can expect to get called by 22, J9s, AJs, 88, 55, 44, KJo, 36s (yes, i know...) OOP! Just today at 25NL zone I squeezed huge in the BB with AA vs an UTG raiser and SB caller (the SB and I were very deep), and the SB called with Q9s OOP. Thought he was actually competent because he was 280BB deep or so.
I would 3-bet very tight OOP (JJ/AQo+), even against button opens, since you have very little fold equity. I personally 3-bet a wider range in position, but you have to be very comfortable playing postflop to do so. But you can't go wrong with JJ/AQo+ as a default, unless you're playing a nit.
What makes 3-betting profitable is picking up dead money from fold equity, or making them call with worse hands that are dominated (AK/AQ vs KQ, AA/KK/QQ/JJ vs 109s or whatever junk they're calling with). You have almost NO fold equity, and OOP, you can very easily get bluffed off your hand, even if A-high is best. So we make most of our money at the micros from 3-betting for VALUE.
Just yesterday, I 3-bet J10s from the BB against a btn steal, and he called. Flop 10xx. Checked it to him, and he barreled his whole stack off to me. Luckily, the river was a 10, so I ended up calling. If it didn't, I probably would've folded. You get into really sticky spots OOP, and it's very easy to make mistakes without solid postflop play.
I've recently started 3-betting more from the blinds (depolarized and some bluffs like JQs), but I highly advise against this until your postflop play gets much better. I lost a lot of money 3-betting from the blinds and in general until my postflop play was solid.
A skill I've found very useful is checking to underrep your hand, inducing bluffs and lighter call downs. This actually improved my winrate pretty well, but this also requires good hand reading skills and being able to put your opponent on a range. Like AK in a 4-bet pot. Flop Axx. Check and go for a turn barrel and very small river bet to get a stubborn QQ or JJ to pay you off. Or if you flop TPBK in position or OOP (a very very common scenario). Let's say you open OTB with A3s, and flop comes A82. This is a really good spot to pot control, and induce bluffs and lighter calldowns. People will barrel into you if you show weakness, and tend to call down lighter if you underrep your hand. If you bet the flop just because "I have TP!", you're losing a lot of value by doing so.
You will get paid off by bluffs, or they just won't want to believe that you have an A because you checked the flop. Or be confused and pay off a turn and river bet with 99. Realistically, besides KK or QQ, that's the only hand you can have. If you didn't have KK, QQ, or TPBK, why would you check an Axx board as the PFR? And your hand really can't take a lot of pressure either, especially OOP. By checking, we keep their whole range in: bluffs, value hands, and second best hands.