Everything is on sale right now. You don't have to invest your remaining 4 ethereums in ICOs. You can invest in projects that have been around for a while and have actual products such as Waves and BAT. Both projects are undervalued.
good advice ,
bcoz investing in ico with 20-40m hardcap is not a good choice in this market .
as already many good projects have marketcap below hardcap of these icos , so choose them .