The best advice I can give any new grower is just do not over complicate things,there really is no need.
Stick to a couple of growers on here,or some one you can trust who you know grows,but gets good results.i know plenty of growers that get very low end results ,but claim to be the don data of the grow world.
Tell no one what your doing ,no one .growing can be hard sometimes,because of trying to keep things under the radar,not even my brothers know what I do.i don't want no one knowing what I do,the less that know the less chance of things going pear shaped,but I'm in a illegal situation here in the uk.but even if it was legal I still want no one knowing.
Buy the best equipment you can afford,cool hoods not tubes,are in my view a must,you will lose a few lumans but I think it's well worth it,get good exhaust fan and inlet the biggest you can afford,I have found through trial and error over the years,that bigger is better I use a 12 inch out let ,big boy filter.and a 8 inch inlet.The reason that I would say get a bigger exhaust and inlet is you can all ways use more lights if you,get the chance of more room,you can buy a dial /speed controller to turn the speed up and down,but I do smellies so most the time I need the filter on full.Has for watering get a auto pot set up easy but deadly when used right.
Are you growing for personal use,or for both you and to shift a bit to friends ,because if you are do your re-search into what they like smoking ,where I live I have known people get stuck with some really nice stuff,just because every one is into the haze strains,glad I'm out of all that shit.but it's well worth shifting a bit your first one to get some money either to add on to your new room or just to pay for it.
If you do have a problem ,don't panic and start adding this and that ,most new growers do more harm than good,I would start of using advanced,I have used there nuts in soil and done really well from them,you do not need there full range,sensi pro a/b big bud and overdrive that's all you need nutrient wise unless you hit a major problem,then buy what you need to fix it.get there ph perfect stuff,I have not used anything to gage my ph in years ,no need.The water in most country's is pretty good,if I was living in a 3rd world county then I would look into my water source more.But buy a blue lab ec truncheon there brilliant and a must,make sure you use good soil,I liked bio buzz light ,the one with no added nutrients sure it was called light mix,if not soil from a hydroponic store ,rather than a place that stores it out doors where any thing could end up in it.
I would start of by doing regular seeds ,rather than feminised regular seed's give you far more options when it comes to keeping a mother,or a plant that may have a few different traits that you prefer,buy good genetics,the reason I would go with seed unless you have someone who does good clones,ones without any mites or other things wrong with them.seed wise no one knows you got the seeds only you and the seed bank,there are plenty of great seed banks out there,I use marijunaseedsnl for near all of my seeds,if not them attitude seeds.If you do go with feminised seeds then go with something you enjoy smoking,if you are from the uk,then ugosb are your best bet.There ugsb#1,or there blue's,both brilliant producers and people love the stuff,but there reg,but once you sex them a mother can be kept for has long has you want .feminized it would have to be greenhouse seeds,super lemon haze,exodus cheese from them is brilliant not far of the real deal cheese wise.Trainwreck,arms all easy to grow and produce good yields.
For your first grow go on the space you have,what method you are going to use,what size are we talking,most important thing is enjoy the growing it's a great thing ,and in time it because men's a secondary job,I love the breeding side have done for the last 6 or so year,but I'm growing for med's.I am not a big smoker of the flowers ,unless it's really special,I'm more into making bho,into vape oils,and Rick Simpson oil,that me and my wife both use.keep us up dated with the room and how you are doing good luck jha bless
Tyke....