Rory, do not feel bad you are at the beginning of the joy of owning a home. 22 years ago we bought a older home that needed alot of TLC at a good price. HVAC, windows, doors, kitchen rebuild, hardwood floors (especially fun doing yourself), wall removal, bathroom rebuild, tile floors (another fun DIY project), plumbing, roof, redoing roof because of storm damage 1 month after finishing it the first time, mold mediation because of storm damage, water heater rusting out and flooding across all of your nice hardwood floors, and 18 years later wife wants to move to a house that does not require as much maintance because I am no longer healthy enough to do all the work myself.
Move to a new home (house was 2 years old) that due to the economic conditions we got for a great price. Wife wants windows like the ones I put in the other house, replaced all the ceiling fans, HVAC was installed incorrectly so had to replace 1 unit already (builder and HVAC company is bankrupt so "what" warrenty), wife did not like the chandliers so replaced them, wife needed a hot tub so did all the install for it, former owners cracked alot of floor tiles moving out so tear out the tile floor and redo it so it looks right, tirm for hardwood floors was not done correctly so replace it, previous owners left hose connected to outside spiggot with water on froze and busted-replaced. Now I have looked at 3 winters of heating bills and decided that something has to give, so now I am looking at putting in a woodburning something.
So much for moving to a new home where I could rest! lol
The moral of the story is a mans work is never done, you just may get a small break before the next project begins.