450 ego is quite high but I think that is probably around what I get as well per day. Those fans definitely increase your ego but I bought some extra instruments to get some extra skill. A piano music lesson tends to give me between 300 and 700 skill points.
450 ego I can manage in a day, I do the orchestral lesson and per lesson I get 76-152 skills. So, I have to do 4-5 lessons per day. And I'm happy with the amount of Starbits I get everyday.