Replying to those who asked what to solo at 23:

I picked up some steady experience by soloing the crocs and caimans in oasis.
It isn't at all thrilling,
but if you just want to pick up experience and can't find a group, it works.
You can earn a bubble
perhaps every three hours, if it isn't too crowded. Grouping with one other
player works, too. Watch out for giants and spectres.