So, assuming you've acquired good gentic seeds....
First thing you need is a good tent for indoor. I highly recommend a 4x4 tent to start with(I'll talk about outdoor grows later)
To acquire a 4x4 tent, search amazon. For rookies, they have what's called a "plug and play" tent. It will include an 8" oscillating fan, hopefully also a 4" oscillating fan. A charcoal filter to remove any odour, as well as you duct work for air intake/outtake. It should also come with a humidity gauge and temperature gauge.
The air intake/outtake ducting will be attached to the charcoal filter fan.
Next we need lights. Again, amazon. Get cheaper lights until you've done a few grows and start learning what PAR lighting means to the plants. So we will go cheap LED on this, 2 1200w LEDS is perfect. Doesnt hurt your electricity bill, doesnt created alot of abcess heat. Make sure they have a vegetative switch, and a bloom switch.
5 gallon pots are ideal to start with. Let's assume 4 plants, so that's where we start since most states allow 4 plants. Make sure the pots have drainage at the bottom because the root system needs air, but we also want to water plants until "runoff" assuring all soil is watered.
Soil. Stay the fuck away from things like miracle grow.
You'll have to learn nitrogen content etc. The bag of soil will read something like 3/5/3 for instance. That's a basic measurement of the NPK ratios. Nitrogen/phosphorus/potassium. 3/1/1 is the ratio you want.
You'll also need a ph pen as you always want your water around 6-6.3 ph, this is vital.
Also a PPM pen is good to have as well, both cheap and available on amazon.
I'll continue with more, but I'd strongly urge starting with photoperiods NOT autoflowers.
All the things I mentioned should cost about 5-700 dollars excluding quality seeds.
Again, hit my messages for seed inquiries