My friend keeps telling me to invest my whole lifesavings into bitcoin and telling me I'm stupid for not doing it.

I (30f) have just finished nursing school in may and have started working as an RN. I am in the process of saving to buy my first home and almost have enough for a 20% down payment. I was talking to a friend recently who has become obsessed with crypto and its projected growth. I also have some money invested in crypto as well as having a diversified investment portfolio. My friend was talking about how crypto is projected to grow by 2-3x in the next year and he told me that I should take all my money out of other places and invest in bitcoin so in a year I will have more money to buy a house. It sounds good in theory but I told him I wasn't interested as I already have some money invested in crypto and it was too much of a risk that I'm not willing to take as I'd essentially be gambling my lifesavings away in a short term investment. I would rather invest long term but I am trying to use most of what I have to get my own house and finally move out of my parent's house. He said I was an idiot for not listening.