Cockroach soldiers are weak against earth magic, so if you have a good magic level, you can kill them easily at about level 75. Once you get to about 90, you can probably stay there for a very long time with little/no food.
I would say you should be level 50+. You could be lower but with better food.
about level 90, monkfish have better xp and are faster to catch.
train or make money. there are much sites on the internet to find what to do.
Level 80 Woodcutting is a good level to begin cutting Yew trees in RuneScape. You can begin ealier than this if you wish to make some easy gp.
to change your stats on runescape all you have to do is level up.
You should be level 80+.
earn money from stuff
you should train on somthing around your level and gives fair drops
It shoud be 500 millstone or higher
The higher the level the more profit you should be able to make.
Level 80+
I would say you should be level 50+. You could be lower but with better food.
Depends on if you pot your skills or the weapon you have and your strength level.
You should train on Range.
Yo momas house
I say whenever your prepared, but if your not sure, level 100 will be fine.
get cb level 75 then go in level 3 arena and come out,you should have it