My actual plan is to buy daily fractions of btc ad long as price stays below 10.000$ / Btc and stop if and when surely it will go above that level.
Don't set yourself such targets, because it will only work against you. By the time the price breaks through the $10,000 mark again, you can be sure that it will keep going up far beyond what you think is possible.
My target last year was to keep accumulating as long as the price was hovering below the $2000 mark, and it didn't take long before I realized how much of a fool I made out of myself. I won't make the same mistake again.
Continue to dollar cost average your entry points and you'll be fine, that's my advice to everyone here. Even if you bought last year's peak, if you buy at current levels you effectively lower your average buying price with at least 50%.
Instead of waiting for the price to reach $20,000 to break even, you'll break even around $10,000 or even lower.