You are asking as if there were some natural boundaries or legal limitations to get into a certain profession. Life is what you make it. You need to get a clear target and work towards it, but stop changing your mind every month that doesn't get you anywhere.
And you should inform yourself about your target What is HANA?
Can a MM end user become a SAP HANA consultant, is always similar to ask like can a MM end user learn swimming. I am not sure what kind of answer you expect for such a question.
If it is not possible for you to leave your job due to financial constraints then you have anyway limited chances, then you have to ask your boss or your HR department if you can develop towards this direction.