I like mage, since cap 41 I've been playing solo and never swapped from Char.. It's hard to play mage with those speedsets and since enchanted eyes are gone it also hard to get perfect ordered stats, but even if u don't have all this, teamplay as Redjellydonut said before is a very good opportunity as a mage. Tho solo is possible. But it Requires lots of practise and patience.

Believe it and you can achieve it!