I don't have much hope for the future of Sapiens. I hope we don't destroy all living things on the Earth on our way toward extinction.
I've been gardening most of my adult life. We have 50 acres, but certainly limit ourselves to a relatively small garden which most folks who have yards could manage. Don't be afraid to start. Each year is different, with successes and failures. I still learn with each passing season and I'm 73 years old.