What jumps are you landing cleanly and consistently on ice? What jumps are you working on, on ice? Also relevant - age, athletic ability, how often you skate, how often you have lessons, what else are you working on in skating, how long have you been skating, how long did it take you to get single axel? What does your coach say when you ask them this question? Anyway I would say that whatever answer we give will be more or less useless and this is probably not even a question worth asking. If you want to do a 2T, just work on it, and it will come (or not) when it comes. I suppose you could argue that you might want to know in case you think your coach is no good, but honestly that's unlikely and not worth considering unless you can see other skaters with different coaches progressing more quickly - but even then, it may be that they are more talented or work harder than you do. I don't think working to arbitrary time limits or comparing yourself to others* is helpful.
* - compare yourself to others in terms of do you work as hard as they do, have the same good attitude, what can you learn from them, not in terms of how quick the progress is. I've been skating 17 years and I am pretty hopeless, but I enjoy it. If I compared myself to others who progressed more quickly than I did (like my kids) I would have given up long ago.
