I have mean "many many skill points". Right, there are no bags in MM7 
Every time your character levels up, it gets 5 skill points. You can use these skill points for improving its skills. You need not distribute the skill points "right now" when you are leveling up, you can do it when you decide for it. The skill points will stack, you cannot lose them but you also cannot share them with other characters.
Getting a skill up one point will cost you as many skill points as is your current skill level. For example, from 7 to 8 = 7 skill points.
Now, calculate when your Archer gets:
M7 in Fire, Air, Water and Earth (M7 is enough).
G10 in Bow, Chain and Perception.
M10 in Spears (at Master level, your level adds to damage so that having a high level in Spears = making a short process with all critters around).
In fact you will want more for Bows and Spears. Perhaps, your Archer will train in other skills, too ...
There also are other sources of skill points than leveling up but you must be very good in your stats (flames - Game, Contest, Test, Challenge) or you need to wait until you reach Land of Giants. Lands of Giants isn't an easily reachable area.
