This is a very difficult one to answer, and depends on many things, such as time you're willing to invest amongst other things.
It's possible to earn enough to replace a full time job in 6-12 months, for others it might take longer, or if you don't take action, not at all! Let me put this back on you...
If you knew in advance that it would take a whole year of effort to achieve your income goals, and in that year you would endure challenges... would you start?
If the answer to this question is no, you're probably not the sort of student we're looking for in this program. It's not that it will take a year... but it might, and if you're not willing to stick it out, this probably isn't for you.
On the other hand, if the answer is yes, then you 100% want to jump on board right now, before this offer expires.