My landlord sleeps in the living room and brings guests overnight so my access to the kitchen is limited Can I do something about it?
In my opinion, you can try and talk to him about it. This is using the agreements you made, when you first moved in. However, you can also choose to move to a more comfortable place.
Yes and i would strongly suggest it -- move ---
Me I would just move!
Move. Your landlord is an inconvenience of your privacy.
depending on your agreement when you moved in. hopefully your lease isn't too long. If I were you I would note and quickly.