Buy some Fox Farm Ocean Forest soil, some perlite and a small bag of dolomite lime. You can use this mix all the way through veg without needing grow nutes. I suggest you transplant at least once in veg. Then just decide on some bloom nutes before flowering begins. The simplest and most effective nute system out there is Fox Farms. Big Grow, Big Bloom, Tiger Bloom. There are other products you can add to this lineup to get bigger and better buds as well, they have a simple chart and feeding schedule and that's that. Then all you really need is a pH meter.
But honestly. If you are just doing one plant at a time, just use the soil mix I gave. And grab one or a combo of bloom nutes from any lineup and read up on how and when to use them. It's also good to have a simple N source to add in mid flower so your leaves don't turn yellow too early.