Dedicated2DOM

Hi guys, 

I used to play poker mostly in 2011 and 2012. I would play mostly at NL10, NL25 and a few thousand hands at NL50. I am considering starting to play poker again. However, is online poker still a good way to make money ? Put another way, assuming that I am willing to dedicate a lot of time to poker and enhance my skills on regular basis, is it possible to get to NL50/100 within 1-1,5 years? I know that it might be difficult to precisely answer the question but the rule of thumb is good enough.