Start like this! Depending on what kind of DT, DE you are making to make the first attribute! For a pass rushing DE i would start with agility but some start with speed
Ill put Jdbolicks guide here also:
If going strength first then pick one pound below the maximum. If picking speed first then pick one pound above the minimum. Enhance the first attribute to 10%, train intense three times, enhance to 20%, then train intense until you have a nearly full bar at 32.9x. Convert 15 bonus tokens to a skill point and cap to 48.9x. Then boost. Next season you'll enhance to 30% and normal train, then second cap, then continue normal training, then third cap. At that point you'll unlock and enhance your attributes for multi-training. Unlock the first, second, and third attributes you plan to cap and enhance all to 30% when possible. Use the free first slot to rotate any other attributes you plan to cap eventually, enhancing each to 10%. Continue multi-training until the first attribute reaches anywhere between 90 and 100 depending upon your build plan. Skill points should be spent in the first attribute until it reaches between 73 and 85