A bit late now, I'm lvl46 on my 1st char. But it's ok, I'm not in a huge rush.
My suggestion would be to finish leveling that char to 70. Then turn over the Seasonal Char leaf and start a new one. You can get boosted to level 70 in about 30 minutes on Seasons, and more than enough people are willing to do it.
I say finish leveling that character, so that you are not as overwhelmed by the amount of skills and everything that level 70 brings. Because when you get boosted, you literally have to wade through all of the skills and runes and everything in one go at level 70. Then play with some of the MyBB guys, who will help you gear and get a grasp of what to look for at max level.
The other 1st prize alternative is creating a new seasonal character tonight and get boosted to level 50 or so. Then left to your own devices until 70. Then you get the best of both worlds.
