Monitors, room treatment and a bunch of time spent on learning how and why as you record.
Not to be a bringer down of your enthusiasm, but many get exited to make the next hit record only to find that it takes much more than gear to get there.
Don't worry man it is possible, but it takes a shitload of time and learning to get to a point where you will feel that you have what you need to do it.
This all comes after the fact that the talent is there.
Start out with what you have budget for, but know that that is not what it will cost to make it all work at a professional level. That is not to say you may not be satisfied with entry level stuff for your needs, but do not expect a $5000 budget and lack of 'years' of experience to compare with the shiz you hear on the radio. It just does not work that way.
Best to know that now. Some get there quicker because of pure natural talent. Most don't. I don't know you yet and am not making a judgment of you personally, but the typical is not so easy to get there without spending a bunch of time and money.
Best to you man and keep that drive!
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By the way, it would be very helpful if you described what it is you plan to record and what your goals are.