As an investment that has reached his accumulation stage with his long term of 2-3 cycles or more, it is adviceable not to sell all your coins but to take your profit and continue your journey or sell part of your capital and have some left which you can continue with because it will be wrong as an old investor to sell all your portfolio and start from the scratch that is from zero level investment that will not be good at all, except you are not interested in Bitcoin anymore.
It is likely true with past cycles especially two, three or four cycles ago when Bitcoin price was very cheap, under $20,000 or $1,000 or even below $100. Now, in 2025, in this market cycle, Bitcoin price has been very high and expensive so it will be harder to reach your accumulation target.
New market participants in this market can start and maintain their accumulation and have ideas as well as kind of plans for more intensive accumulation in a next bear market that would happen in 2026 and 2027 if Bitcoin history repeats itself in this market cycle.