Because this is your second home, it means it will not affect your family.
I'm more curious how much Bitcoin you can buy with the proceeds from the sale of your second home?
And also curious where did you get this idea? because Bitcoin is not a common form of investment in many countries (seeing from your username it is very Indonesian).
Hopefully you have obtained adequate knowledge of how Bitcoin price moves and also how you should store your Bitcoin, never use an exchange even though it is a local exchange which is always considered safe by many users, buy a Hardware wallet and store it safely