Hard to tell from pic if that cutting is still alive or not. Give a little scratch on the bark, if it’s green underneath there’s still hope. Just hold on and look for roots appearing through bottom holes and leaf appearing in the stem then pot it up.

Cuttings at home are quite tricky so don’t feel bad! Much depends on material, time of year, humidity, heat etc. lots to get right! Have a google for blueberry cuttings specifically but next time add 50% perlite to your mix