So my wife and I started buying bitcoin a couple of months ago, and as of right now we're the proud owners of 0.4 of a bitcoin.

Since everything is so cheap right now, I want to invest some more of our savings before things pick up again.

Should we just be focusing on BTC, or would we be better off diversifying (maybe Etherium?).

We got into crypto in order to help us own a house and be able to be semi-retired within the next 10 years, if that helps.