Stock Market Buy Low Sell High: Is It That Easy?

Sometimes in spite of selling you have to cut your losses and just sell out of a position in order to put that money to work where it can create some gains

Shouldve held on to tesla

Might sound a stupid question but can you lose more than you put in?

When you're about to pay your taxes, does the amount of taxes are determined by each sell you make? I make 3 sell, do they deduct a percentage PER stock, or do they take all the stock sells and merge them to give me a tax as a whole?
What if I didn't even get much of a loss or gain? Like, if I buy something at 11.00$ and only gain/lose 10 cents? Will that be taxable?
What if I use limit to reduce the price of a stock when I buy it and sell it at a hugher price? Is that posible?

Right now im trying to grow my portfolio. I see numbers go up and down red and green. im not doing anything but putting money in and buying stock is that hurting me or just doing nothing?
Im learning as im going i want to grow my stocks i guess thats my first goal.. not sure if its a bad one or good one.

No the key is to buy low sell high and don't wait until get higher

This is good advice. I've noticed that although buy low, sell high is simple, trend is stronger so if I try to get in when the daily low is hit hoping that price will go back up, sometimes a downtrend is just starting so my only chance to get out before losing money is if there's a pullback before it continues down. In trading, things that seems like they should be simple are not.

IT seems to be a good strategy WHEN You let yourself go by looking at CNN Market sentiment that tells You WHEN the market is fearful or greedy.

Disciplined