What should I do to fix the hot water pressure in my kitcthen, and bathroom?

Hello JFree

You have to give more details here first before a proper advice can be provided. There are too many possible causes for your problem.

Is this a new problem? If so, what happened prior to the problem showing up?
If it is an old problem : was it always like that, or did it suddenly occur - and if so : how long ago was that?

Is there any place in the house where the hot water pressure is up to standard?

What type of water heating system is used in your house, and where is it located? What are the distances to the problem outlets?

Once you provide answers to these questions, please contact me by private mail (click on my handle and follow instructions) to draw my attention. I will than reply here again.

Success !

:)