no but seriously, the most effective strategy is buy and forget
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and your gut feeling that you have made right investment
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and wait for it to go up
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which is why i don't do intraday, just buy with delivery and hold
I want to believe you are talking about bitcoin, even though you didn't explicitly mention, if it is bitcoin, then you are correct; i am a long term bitcoin investor, so i just buy and hodl for the long time while i also accumulate along the way. But if you have other coins in mind other than bitcoin, then i'd not advise this, altcoins are very risky and you better not buy them and forget it, lol.
That said, i am pretty sure this does not help OP because he is an active trader, i don't know of any strategy that would help you get profit in trading and i can only advise on hodling bitcoin which i think is better than trading.
yes, talking about bitcoin and stocks as well because i invest in those too
and i think the same principle would apply on altcoins as well
i mean if u truly trust in the project and u see potential in it in long run
then i don't see why u couldn't hold on to altcoins as well
buy high and sell low

no but seriously, the most effective strategy is buy and forget
and be ready for huge dips, have enough cash available to buy the dips even
and to get through those market conditions and trust your research
and your gut feeling that you have made right investment
and wait for it to go up
which is why i don't do intraday, just buy with delivery and hold
It's easy to say and hard to do... that's the theory.

So don't trade, just invest is much better and don't bother thinking about a lot of strategies like trading, if investing just buy and forget... keep doing it the same way with DCA accumulation.
Now don't focus on trading, but accumulating is better.
i learnt this seriously from stocks trading over long period of time
i realized if i do intraday i almost always end up on the losing side on average
plus i was making my broker rich paying him brokerage on every small trade
but from like last 2 years i have changed the strategy and now i just do my homework
pick stocks which looks promising and then buy and forget about it
like as if u buy a land, u don't have to go look at the land every day
just wait for the prices to go up and then either re-invest or sit back and enjoy the profits and dividends