It is easy as long as you can discipline yourself. But that is not the issue. Where will you pile up those 10 percent if that is the number that you want. Will it be time deposit with banks or be invested with the crypto world?
Okay already set. So where will I put it?
My God. The talk about the question of the OP is already out. He want to know where he should put it. Advises will really help but this aint one.
Well for the OP if you will keep the 20 percent of your salary then go bank for 10 percent then maybe risk the other 10. Why? It will not grow in banks. 1 percent annual is not that large. You have granchildren and still you cannot get the number that you want to achieve. Make something out of the money. That is why investing in different field are made. So that you wont just rely on banks.