Disorganised, constantly losing things, messy, always late, always rushing around doing everything at the last minute, extreme procrastination, forgetfulness. Weird sleep patterns like I would want to stay up all night and sleep in all day. If I just left myself to follow my own sleep schedule I would slowly become nocturnal.
Always felt sort of "off" in social situations and like I hovered on the outside of groups, like I didn't fit in. People said I talked too much - was always told off at school for chatting or daydreaming.
Had a million unfinished projects and ideas that I'd hold onto for years thinking I would finish them one day (rarely ever did), so many ideas but hadn't thought them through. In fact difficulty thinking things through and planning ahead in general.
Massively struggled with any kind of habit formation, couldn't stick to anything I'd decided to do. Dozens of self-help books which I'd read enthusiastically, become almost an expert on the method and then never actually finish or do it for myself.
Emotional dysregulation which I didn't really recognise at the time but I was very quick to get annoyed with things for example. And any time something went slightly wrong it would send me into a spiral of "I'm useless!"
For any of these issues, I would have tried "everything" and if someone came up with a suggestion to try and solve it, I'd instantly have 3-4 reasons why it wouldn't work (this was not me being defeatist - it was because I had literally tried all of the usual suggestions and they didn't work for me). This made people annoyed and feel like I didn't want them to help me. I did, but most of the time nobody could because I needed some niche solution which is often at odds with the things which are more usually suggested.