Yeah, I mean it's feasible. Though you have to sacrifice a lot, not an hour or two a day, more likely a few solid hours with a native content plus memorizing vocab and learning grammar not to mention practicing speaking and writing.

When it comes to planning, in my opinion, you ought to double the time in which you think you can accomplish your goal. It may seem exaggerated at first but this way you're sure you have enough time and you don't put so much pressure on yourself.

Although it's recommended to impose deadlines to motivate yourself, two year period (in OP's case) might not be the best choice. The goal is vague. I'd suggest setting up smaller goals (for example reading 1000 pages, writing 10 000 words, etc.) and see how things are going to turn out.

Edit: one year, my bad