Realize ETF profits up to the exemption amount?

Hello dear community, as is well known, ETFs are at ATH and I am up a good 50% on the MSCI World. I'm still studying and need around 1000 euros in the next few weeks (fun expense, already planned anyway). I am now considering realizing MSCI World profits of around 900 euros or less than the tax exemption in order to use the exemption for the first time. I actually planned to take the amount from the current account. Is there something against this? Unless, of course, I reduce my portfolio