Xt3rmin8r

ok im gonna assume this question has been asked way too many times to count, so plz, forgive me, search was not helping me. to the question is there a specific template to increase str/attack/def skills levels? any information on where to level, or what to kill would be greatly appreciated, also any advice so that this character is not just a waste of time. currently i have not contemplated raising magic, i just want a balenced character. money is more or less not an issue, and im in full iron armor, with mith scimy. im currently combat lvl 21 attack lvl 20 str lvl 17 def lvl 15 F2P ive tried to do research on this subject, but failed miserably and resorted to the lazy way to getting answers.