There are Adept rings, amulets and bracelets that requirements are based on your level
Remember, the things you do here, are for something to be done and maintained for long term! If you think it is to be quick and easy, it is not, but this does save aion kinah you some time in the long run!
If you are rich or really want to skill with you may purchase those that give +4 Skill EXP, which is the highest Adept crafted item, but the price of these are much more higher, ranging around 1M (or 1kk) per piece.
There are also Adept rings, amulets and bracelets, which requirements are based on your character's level.
Adept Ring+0 provide +2 Skill EXP, requirement of Level 40. These can be made by crafters.
Adept Ring+1 provide +3 Skill EXP, requirement of Level 55. These can be made by crafters.
Adept Ring+2 provide +4 Skill EXP, requirement of Level 70. These can be made by crafters.
Adept Ring+3 provide +5 Skill EXP, requirement of Level 85. These can be made by crafters.
Adept Amulet+0 provide +4 Skill EXP, requirement of Level 40. These can be made by crafters.
Adept Amulet+1 provide +6 Skill EXP, requirement of Level 55. These can be made by crafters.
Adept Amulet+2 provide +8 Skill EXP, requirement of Level 70. These can be made by crafters.
Adept Amulet+3 provide +10 Skill EXP, requirement of Level 85. These can be made by crafters.
Adept Bracelet+0 provide +2 Skill EXP, requirement of Level 70.
Adept Bracelet+1 provide +3 Skill EXP, requirement of Level 80.
Two Astral Boards, the Green and Steel blue colors, give +4 Skill EXP, but Astral Boards are very expensive, and is not recommended! Check the price guide of your Server type to see the price of these, and you know what I mean!