I have experience in scalping cryptos, especially BTC. I can say you should NOT use leverage higher than 20x (if you are experienced, otherwise do not do this at all) and should not risk more than 1% of your capital per trade, or 2-4% of your capital if you do hedging at the same time on another account. However, if you hedge on other account, you should know when to start hedging, how to scale your both positions to get a profitable distance of the entries in each position and a few other things. I can't explain in a few sentences as inexperienced traders would still fu*ck up this, and experienced ones will know what I mean or will get an idea and figure it by themselves.
I used to use the leverage of 50x and was doing great (in normal days, including the days with high but normal volatility). However, when the idiot (Musk) starts his Twitter BS then you lose your position if you are on the wrong side as in such cases (when the price move 3% or more percent in a few minutes) you can't protect yourself in time when trading with 50x leverage. So remember, DO NOT USE LEVERAGE ABOVE 20x (if you are an experienced trader, otherwise avoid scalping crypto or use max 5x leverage and have a good risk and money management).
Regarding stop losses. There are a bunch of advice that you should always use the stop loss, even that it should be tight. Well, some wannabe traders copy/paste trading advice that they found on the Internet without realizing that those advice was written many years ago and mostly for some low to medium volatile market, definitely not for BTC and other cryptos. If you plan to scalp crypto and use tight stop-loss then good luck as you will most likely be kicked out of your position even before the price action has started. I should mention that after you are out you will then see the price move in your predicted direction. Then you will try to reenter and will experience the same thing. After a few hours you will realize that you lost a few % of your capital only on your stop losses that should protect you, not harm you. The solution is to learn how to trade properly, when to enter and when to exit, where the price could possibly retrace after your entry (that will still not be dangerous to your position) and till where you may scale, when it is reasonable to stay in a position that is in loss and open another hedging position and when you must exit right away without trying to save/protect your position in any way etc.
I personally use several accounts at the same time. One is my main account and I use it for a combination of day trading and scalping, the other is for hedging, the other is for quick scalps only and one is for swing trades when I am confident in a bottom or top. The leverage is not the same on each account, neither does the amount I use. When I trade, I do monitor the market constantly. That is my personal strategy that works for me, but you should not copy it if you are not used to it and don't know to read the market properly (and are not able to monitor the market for hours and updating your turbo short-term TA a few times per hour) as it is not loss-proof. I still lose sometimes, but in general is good and much better than when I used 50x leverage (as then I had some big losses and now I am preventing them). However, trading is risky in any way, so beware
