What percentage of your worth is invested in crypto? How much is too much?

EDIT: I've worded the title wrong on reflection, I dont need to know your personal investments, I'm looking for help deciding what I should do in my situation, so please dont think I'm prying into your personal finances in any way.

I asked this question in the daily and got a few replies that were all very helpful (thanks to those who chipped in), but I thought I'd ask here, with a more detailed post regarding my situation, in the hope of getting more input.

Sorry if its a bit long...

Currently I'm at 2% and am seriously considering bumping that up another 10%, but theres a catch. I will need that 10%, and hopefully whatever gains I've made, back by the end of 2025, regardless of where we are with the markets. This is vital as I will be using this as part of a payment for a house.

My plan is to invest 10% of my capital, double it (I'm aware this may be unrealistic), take my original investment back and let the rest (whatever gains there are on the original investment, plus my original 2% invested a few years ago.) do its thing until 2025, then take it all out apart from my original 2%, which I'm going to hodl.

I'll be DCAing in over the next 6 months or so.

Also I'm not talking hundreds of thousands here, but its not peanuts either, for me anyway.

I'll be investing in mainly BTC and ETH, with a small amount gambled on alts and even some proper shit coins, but only a very small amount on those. My risk telerance is very low with this 10% investment.

The rest of my savings are spread across a few traditional investments.

Theres one more quite important thing to consider, and that is that my entire savings pot (as it stands at this point) will be spent on a house in 2 years (too complicated to explain here, but I'll end up owning it outright with no mortgage if I play my cards right, or a small mortgage if it doesn't pan out, but also no savings left, and only a tiny pension pot as it stands).

I'm knocking on a bit and have made some bad financial decisions in the past (selling a house I shouldn't have, buying another one I shouldn't have) that have hammered my financial situation, and crypto may well be the only way I can claw some of that back over the next 20 ish years until I retire, so I really need to play my cards right. I'm down A LOT from where I should be, so I fucked up good and proper, Id like to not do that again.

Is this plan too risky considering I'm breaking the 'dont invest what you cant afford to lose' adage? Although loosing it wouldn't cripple me, but it would mean a bigger mortgage, and I cant bare the thought of loosing any more money. Should I just stick to traditional investments like high interest savings accounts, ISAS etc?

Any advice would be gratefully received.