If you're getting a monthly allowance then I don't see a quality reason that's worth selling your laptop. You need laptop in the modern world, use that laptop and learn a skills that can fetch you more money instead of selling the laptop. Don't get too over excited and invest more than you can afford to lose in the market, selling your laptop might come with regrets. Manage that allowance and allocate more to investing in Bitcoin when you get other side hustle that gives you enough money to support the allowance. You're fortunate to have allowance so you don't have any tangible reason to sell your laptop unless you have multiple ones.
The laptop can be rented out to your friends and it gives you some income to support yourself. Selling of gadgets should be the last options when you don't
have ways to raise capital for your investments. There are many opportunities that you can use that laptop to benefit from so I don't support you selling it but this is just my own opinion since I'm not directly involved in this decision I might be wrong with my opinion so just take a moment to rethink and do what you feel is best for tou. You won't regret buying Bitcoin (that's a fact) and if after buying the market keep dipping then you have to exhibit patience and keep hodling.
I agree with you on this matter. Any one who has a laptop or Desktop with internet connection can develop a skill can make money selling that skill.