As said above not ruined, but you would need around 69 str. There isnt much work on the account, I would say start a new one if I were you. The final decision is yours to make.
Start a new account, thats a days training at most what you have there already. So its not like you will be spending a month getting levels.
If you plan on pking get 5-10 attack. If you just want the account for show, stay at 1 attack.
If you plan on tanking, get 40 def or 70 def. If not, keep your defense at 1.
If you plan on using range or mage, just make sure that you combat stays strength based and to train both skills so you do not gain hp levels. So curses and alchemy for magic and the cannon for ranged.