is guessing one or more missing words from 24 security phrases possible?

Hi guys, has someone done the math on this issue?

Let's say I memorize 2 out of 24 words and do not write them on paper (or other methods). If someone finds the remaining 22 words, will they be able to brute force or somehow manage to access my coins?

I ask this as a EuroPoor who can not afford to buy a decent titanium key holder because I would not have that much money anyways, and I do not have any secure place to keep the key holder/paper at all... I can not think of any place really.... so I just want to give it a go by memorizing 2 of the words.