Use "coc qaitems" to get to a location were all weapons and armor is. (coc megatoncommonhouse to get back again)
Use "player.setav (skill_name_here) (among_of_gain_here)" Example: "player.setav barter 50" - will add 50 points to barter skill
Do this instead of using the level up cheat "advlevel". leveling up will also make your enemies stronger aswell. so you can more easily adjust the difficulty this way.
Use "player.addperk (perk_name_here)" to add perks. (find the names of perks online)
Use "addspecialpoints 10". adds 10 points to your special abilities.