If you live in an urban environment, go for a walk and look at the buildings round you. Even if it is an estate, gardens are different you can see different decors through the windows. You will see neighbours and can give a wave or wish them a good day
It is so easy to slip into a 'the less I do, the less I want to do' state of mind and body. We call it 'clockwork mouse syndrome' in our house. Remember those clockwork mice that used to turn up in Christmas stockings?, Wind them up and they whizz round the floor as the spring slackens the mouse s l o w s r i g h t d o w n a n d s t o p s. That is what you are doing.
So set the alarm tomorrow for your usual time. Once you are up and dressed, go for a walk. as you walk, look around you. If you have trees and a park nearby listen to the birds look for signs of spring, swelling leaf buds on trees, ducks having quacking competitions.
When you get home browse recipes online for something new for lunch, walk out (if you can) or car to the supermarket and buy any new ingredients you need and while you are at it buy yourself a couple of bunches of daffodils to lighten and cheer the house up.
After lunch, if you have a garden start to think about the summer planting, perhaps meanwhile put a couple of packs of bedding plants in your basket or visit a garden centre and walk around and choose a few plants to brighten your garden now.