I've always known I've had a learning disability, and I found out a few years ago I have BP2, but now they're telling me I'm also ADD?!

And then I started thinking... you know what, they might be right?

I have a hard time remembering where simple things are, like my mug of tea, or my keys, and will discover them hours later. I start stuff but never finish stuff, and this gets in the way all the time with trying to get better with BP, and I'm never on time no matter how hard I try.

Then I thought about what this is affecting:
My school (homework, missed class)
Work (suspended for missing shifts, currently on sick leave till i can work through some issues)
Health (Doctors don't want to see people who have trouble helping themselves. I know what I have to do, and I can do it for a few days but then it gets lost)

Is this what ADD is? I don't know? I want to get better but it's turning into a feeling of "I'll stop procrastinating tomorrow".