Only crypto is positive for you. The rest is a +-0 business. Why not simply save in a $VWCE or $IWDA in addition to crypto if the individual securities don't work out? You then have a total of 2 positions.
Your idea is good though, that's exactly what I intend to do. However, I don't just want to invest in sectors/country ETFs such as semiconductors, India and dividend ETFs.