All of these things still make you count as disabled, btw.
A disability is any condition that impacts your ability to participate in average life activities and/or have have equitable access to things in our society. It is not determined by how much you struggle or suffer compared to other disabled people. There are certainly people who experience more limitations, technically making them more disabled, but that doesn't make those with less impactful disabilities less valid in their experiences, less deserving of accommodation, unable to call themselves disabled or anything along those lines. Disability can and will look different for everyone.
You say that you can still function, but that you need accommodation for it which does still make you disabled. Functioning ability has nothing to do with it if you still have a condition that regularly impacts your life, and especiallt if you have multiple of them. The idea of your disability being your fault also is just a negative mindset to have, but even if your own actions have worsened your disability, it doesn't make it any less of a valid disability. If I took out my own eye, I would still be inable to see through it the same way someone born with total blindness in one eye can't.
Also being "just a kid" doesn't mean anything. Just because we are more likely to gain disability as we age does not mean that we are incapable of being disabled younger. Many are born disabled, many become disabled young, many experience both. Parents handling things for you also definitely doesn't make it less of a disability? Caregivers, regarding children for obvious reasons, but also for disabled adults are very common regardless of if they're parents or another person/other people.
In general, there is no need to invalidate yourself. Even if you don't think you're "that disabled," that thinking in itself is just a result of ableist programming that teaches us that disability has to look a certain way. It doesn't. You're disabled.
