I actually am not certain this IS to do with my having ADHD. It could also be a product of the fact that I am just returning from a period of depression following a failed relationship (partner had ASD and was unable to engage with my feelings and constantly hurt me, wouldn't engage with my feelings plus injured me by accident and abandoned me to just get through that alone, long story but yes, the last couple of years have been awful).
Ex also wanted to move in with me but kept stalling, eventually admitting that it wouldn't ever happen, so I feel like my life has been on hold. I need to do something different now.
I am determined to find a better job (I am in my early forties) and keep looking, as I've somewhat put my career on hold for various reasons over the years but mainly I want to start afresh with a new house.
I've got my heart set on a house that is owned by a family member. They want to sell it to me too-but it is currently tenanted and the tenants also want to buy it. They don't want to move out-they've been given notice but say that they can't find anywhere. My family member wants them out because they're not good tenants, they have ruined the garden, got three dogs without authorisation, paved the lawn without asking, knocked down a beautiful feature without asking etc etc.
Family member is saying that much as they want me to have the house, they don't know how long it is going to be. Have been looking at other houses but I really do want that one. It could be months or longer before they find somewhere and what if they keep stalling?
I also need to make some changes to my place before it will sell. It needs new carpets and some other work doing but I just cannot motivate myself currently 
I've had it measured for carpets/flooring but I never followed it up.
I am just feeling overwhelmed I suppose and don't know where to begin. Any advice please?