Are there any guides I can follow? I feel like I've hit a wall around wave 2500, it's taking a very long time to ascend but at the same time I've been saving all my tokens for ascension which might not be optimal.

I recently ascended for the 4th time, and I have all level 2 heroes (61-75k valor points on each, no gems with which to upgrade further yet), all soul links, and 2.39M lifetime infinity tokens. I know I'm not close to being done yet, but can someone give me an idea of what sort of numbers I should expect to be throwing up by the time I'm ready to end it? i.e. how many times ascended, how many lifetime tokens, etc?...

My highest level ever reached is 4,899. Should I just reset whenever it gets slow and open boxes whenever I see them? The clicks achievement is the only other one I have left, but that's easy, just using the first skill every time it's off cooldown.

I know I'm still here...Sitting at 85/100 achieves, 1 of which I'm not sure I can complete. Just wondering is all.

So, I remember this game having a cloud save or a similar system, coming back from a few years away and I can't find any way to restore my old save. Did anything happen to the system? Or am I just remembering things wrong?