Depends What skill you are training.
strong hold of sercurity
train your three combat skills: attack, strength and defence. A few guides which tell you Runescape tips such as: where to train, what level you have to be to train there and how to get there are: Sals realm of Runescape and global Runescape. I hope i helped!
you train it
TRAIN
Train.
There is no fast way other than Pest control or soul wars to do this, but simply just train you combat based skill which are the following:HitpointsAttackStrengthDefenseMagicRangedSummoningPrayer
You train you skills.
Train skills.
Make things.
Train your skills.
You don't get it fast. You can get a million in a few days, or if you are very good at RuneScape, perhaps in a few hours.
The fast train from Lisbon to Oporto is the Alpha Train.