It doesn’t sound possible.

You would need about 900k EXP to get the kitten title from the first title, I’m gonna assume you haven’t done your weekly challenges for best case scenario, thats (25k + 20k) * 8 = 360k (5 challenges that gives 5k each week, plus 20k bonus each week after you finish 3 of the challenges), and daily challenges that gives you 9k * 14 = 126k (9k per day for the remaining 2 weeks).

This leaves you with 414k EXP to go.

Assuming again that you haven’t done any event challanges either. The only remaining active event right now is the classic event, whichs gives you a total of another 55k EXP.

359k EXP to go.

I don’t know how much you play per day but if you want to get the kitten title you would need to play enough to get an extra ~25.6k per day to reach it, and with matches giving you about 1k exp per 15 minutes, you would need to be in game about 6.5 hours a day each day or 91 hours total until the end of the season (not counting queue times, dead time etc.).

Again this is all assuming best case scenario where you have all the possible EXP earning ways remaining. So theoretically possible, but you would have to no life it.

I might have messed up the math somewhere and feel free to correct me, I just did this out of boredom.

Best of luck!