Long term leveraged long idea

So, before any of You call this a blasphemy, I want to mention that I already have a good stack of sats secured on cold wallet and now I want to simply make some money on trading, by using small part of my capital.

Since I got almost no experience in trading and especially leveraged trading I want to ask many questions and educate myself before taking any action.

First things first, I was not a big believer in cycle theory, as lifespan of bitcoin is too short to determine anything. It only really repeated twice. However couple months ago we had top (probably). It took approximately 1060 days to form, so I assume the cycle might actually click. Previously bitcoin dropped 76% from it's top, so I assume we will see smaller drop this time (diminishing losses).

I will start to accumulate on spot, starting from 65% drop (44k$) and then maybe add some more.

Now idea of leveraged trading born in my head. I would set long term long positions (20x leverage). Starting from 44k and adding new long position each 4% price drop. If i got lucky, 44k is cycle bottom (highly unlikely). If I am not lucky, then I am gonna lose money before some long actually click and bitcoin rebounds. Now, 200$ on 20x lvg is 4k$, so 100% returns would give around 4k returns (- liquidated longs).

The question. Funding fees. I know, that the longer I hold the position, the worse it gets and some of my profit would be eaten. Considering this risk, simple lump sum on spot with more fiat is better. Not to mention the risk of losing money. Do You guys know any legit platform in which we can set some longterm leveraged bets, without risk of increasing funding fees (if they would be somehow stable and calculatable, it's great)? Also keep in mind I would aim for big returns, so it would take anything from month, to year and half, so time restricted futures contracts aren't good option for me. If You have any ideas, or simply want to share smth about btc feel free. Thanks in advance