if you havent read Reminisces of a Stock Operator, do so

and remember the most important rule...buy low, sell high

speculating is like farting, if you have to force it it's probably shit. being nervous about a trade likely means your either oversized/not managing risk properly or there is some underlying doubt to whatever thesis underpins that particular gamble.

"scalping liquidity/volatility" on an intraday basis should really only be done on the most liquid indexes within the opening hour/hour and a half, via futures (safer if you mistime/don't set a stop, and gets better tax treatment but requires higher initial capital)/short-dated options on ETF's like QQQ (do not hold these shits outside opening hour, these should be 5-15m trades, buy low sell high. cannot say that enough)...trying to trade "momentum" on individual tickers is just really not worth the effort/risk, trust me.

scalping volatilty is just for paying the bills though, the best $ comes from identifying solid swing trades with longer timeframes and buying solid companies while they're cheap/beaten down and holding them for a long time.

also, your basically actively giving yourself a gambling addiction if you do it daily... from the author of that book

the desire for constant action irrespective of underlying conditions is responsible for many losses on Wallstreet even among professionals, who feel like they must take home some money every day as though they were working for regular wages

the entire point to figuring out how the casino works is to free yourself up from needing to work a job, obviously watching/worrying about charts all day isnt fulfilling though. volunteer your time to something impactful locally, work on a passion project etc. live life, if you've figured out a (backtested) edge to the market you have beaten the first fucked up level that is capitilism