ij have been brewing for 10 or 12 years. i brew all grain with homegrown hops and a hand built system that is tried and true.
my last 4 batches have tasted like complete asssss and it has taken me 4 times brewing and ommitting different steps to narrow down the problem, which was something stupid that could have been avoided with a $40 purchase of a new mashtun cooler.
dont lose heart if you make a few batches that are rank. go back over your steps and you WILL find the problem. always be mindful of your process/technique and you will make good beer. there is no magic or secret. it is all in the process and equipment.
if you are a person who gives up or gets depressed/discouraged easily then you should just give me your brewing equipment and go back to swillling Bud Light.
if you have some instincts to make something amazing with your mind and your hands and fullfill the most basic part of your existance, then raise a pint and perfect your craft!!!