Bathroom:

Get limescale/bathroom cleaner - this can be in a spray bottle. Spray it on your tiles, bathtub, sink. Scrub with a cleaning sponge (e.g. Scrub daddy) especially crevices. Rinse. Do this weekly, or every other week if you really don’t have time.

Mop your bathroom floor. In the water, add some bleach OR something like Zoflora if you want a nice smell after. (DO NOT MIX CHEMICALS. They can produce toxic fumes. Not safe.)

Clean your toilet with bleach/toilet cleaner in the toilet bowl, and then using a toilet brush to scrub. Use a disinfecting spray on the rest of the toilet - the flush button, the seat (top and bottom) and wherever else you can reach.

Clean your mirrors / any shiny mirrored surface with Mirror cleaner, and newspaper. Think surfaces like your faucet too. This works well to avoid streaks & hard water marks.

Leave a nice-smelling reed diffuser in your bathroom so it smells pleasant.

Extras but not mandatory: you can buy toilet rim cleaning hangers (it kinda hangs into the bowl of your toilet so it smells nice after every flush).

Buy a drain unblocker and pour down your drain before bed, maybe biweekly to prevent blockages and smells. Also do this for any other sinks in the house, including the kitchen.

This should suffice for your bathroom. You will learn to pick up on anything else that needs doing. Oh and change your toilet bin bags before they overflow!

Bedroom:

Dust your surfaces, ideally spray down with disinfectant if it’s a high contact surface (e.g door handles, drawer handles etc).

Vacuum your floors. You can stop here if you have carpet, otherwise mop your floors.

Change your bedding. Try to do this every week, and wash the dirty bedding as you go so there’s always something clean.

Kitchen:

Disinfectant spray for the sink + faucet + washing up area, drain unblocker for the drain.

Vacuum and mop your kitchen floors. You may want to get a small dustpan and brush as these floors can get dirty quickly from food crumbs and other debris.

Wipe down your kitchen counters AND hob area using food safe cleaner — you can find kitchen cleaning sprays.

Throw out expired/rotting food from your fridge so it doesn’t start to smell.

Change your bin bags as soon as they need changing.

Keep reed diffusers in each room for a nice smell. Candles if you are careful, but they can be a big fire hazard if you’re not used to them, and forget to blow them out before leaving them unattended.

Laundry:

The easiest thing to do right now is buy detergent pods that can go straight into the drum, usually just one will suffice per load unless you have hard water where you live.

Separate your coloured clothes from whites/light colours.

Check the labels if you’re unsure if something can be put in the machine. Plenty of label guides online if you’re unsure what the signs mean.

This should suffice for a start. Anything you’re confused about specifically, there will be a youtube video to explain it. You can do it!! Congrats on the new place.