Losing too many attributes stars from longevity

Having a major problem with longevity in career mode at the moment where my attributes are decreasing faster than I can get stars to replace them, I’m losing around 1-1.5 stars per fight on every single stat even if I don’t take much damage, it’s usually fine till I become a ranked fighter then it starts to decrease at an unrealistic and massively over done rate, I lose almost 1 star on every single attribute per fight regardless of if I do or don’t take damage, my longevity is around 80% and my character decreases all the way down to near half a star, it’s not an age problem as I usually start my character at 18-22 and I have tested it with lower difficulties and it’s the same even if I don’t take a single punch, it’s not a single weight class issue either as I’ve tested this on women’s strawweight, bantamweight, light heavyweight, and middleweight and I get the same issue, I’ve maxed out training to try and keep up with the loss of stars and it still doesn’t give me enough to recover losses.