[Hello, returning to RS after a long time!]

No point in botting, You'll eventually get caught out.. Safest way is obviously legit, just may aswell as take your time, Second safest way is to Buy GP & use Service's who train by hand for you.

[So give me some ideas/advice on what to do with my 1 def pure now]

Get attack level to 70

Get Strength level to 99

Keep 1 Def, ( You'll start questing out for zerk and you'll wish you never started )

Prayer to 52