I'm on the Basketball team, I have a good amount of friends. WTF do I do???
Then you're fine. Just tolerate with whatever shit your parents are throwing at you. Nod and smile, let them speak their piece, don't offer anything in return.
If they go so far as to want to send you to a therapist, humor them as long as they are the ones willing to pay for it and drive you over there.
This will pass. Just tolerate it.
>I read that someone with SPD will have social problems
Usually, but not always. I had sensory processing issues when I was a kid but they're not a significant problem in my life now. I never really had much in the way of social problems other than being kind of an asshole, but thats just who I am.
If you've got SPD, you'll get Occupational Therapy and maybe learn some strategies that you can use or not. If you don't, you'll just waste some time in OT. Either way, it doesn't matter.