Guerilla grow or indoor uk

I know it’s not exactly legal but I have insomnia I used to go days without sleep and the remedy that worked best out of what the doctors give me and whatever else I tried worked best was weed it send me to bed what strains are best for beginners like what could I grow in my backgarden with no smell and if that’s not possible what’s a cheap setup and good strain that can give a good high without smell bieng an issue I could always start a hidden grow somewhere I just need ideas🤣