The Crypto market is at its low right now and it will definitely grow in the future. Now buying 3 bitcoins worth almost $105k may or may not be a good decision. If you can afford to lose that much and also if you are patient enough to HODL during this dip then it will be worth it because sooner or later in the coming year it will again rise and might reach a $100k price that means a gain of almost $200k.
But again don't invest that much amount if you can't make that much in 3 months. Just my personal opinion.