Organizing my thoughts

Since my dad died in September, organization of my thoughts has been an issue.  I am growing older but I suspect that my brain is overloaded.  My husband, adult children and their spouses or partners, my baby granddaughter are planning a camping reunion next weekend.  The house needs to be cleaned, pets accounted for, camping equipment gathered, clothes packed, some food stowed away.  Not difficult, but  these chores have to be done conscientiously.  Then there is the issue of Dory the mini horse.  To date her skills consist of targeting, walking, trotting, jumping the old standards at the barn.  However I have to teach her to use the standards used at the show.  She is also becoming familiar with a driving bridle and harness.  I was chatting with the owner of a 30 year old horse who can walk and do some trotting.  We both would like to utilize the skills of our horses to the best of the horses' ability.  So, how do we do this?  I've been reading and watching videos and racking my brain.  Finally, I have some financial business I've been trying to deal with.  I am so indecisive. The prolonged period of analysis makes me miss my dad and then I feel the intense grief of his loss.