Talking with a therapist whose sitting behind a desk is not my idea of a comforting session.

The right colored blue sofa with green pillows might work with that fireplace tile.

Small client sofa where desk is currently located. Therapist chair across from it between two doors but pulled into the center of the room. Show us a picture of the wall where the door to enter the room is located.

Are all of your files online? Do you just need small desk upon which to use your laptop? Try to place it on the entry wall. Get as small of a desk as possible.

Don't put too much decor on the shelves. It is distracting. Add some books, a few items here and there.

What colors do you like? I'd find ones that coordinate with the green but they don't have to have the green in them. I think that contact paper is going to look cheap.

Get a rug and place the front legs of the sofa and therapist chair on them.

No leather sofas.

This white hearth cover for the fireplace. Closing it off will feel more cozy and comfortable.

Leave the green tile... And the green goes with plants, you should have living plants. .

Without dimensions it's difficult to say exactly what will fit in the room but maybe something like this can work with a small desk. Is there any lighting in this room or will it only be table and/or floor lamps?

I’m hoping to get dimensions this weekend and will update. I will also take a picture of the wall that the door is on. I know it’s about 210 sq ft.

Depends on how flexible you are:

Desk - smaller/only one drawer and adding organization in the closet for files if needed.

Seating - would a comfy chair and love seat work and you’ll have more flexibility layout wise.

Fireplace/bookcase - I think if the green was decorated around, it could be a lovely feature and decorate bookcase based on practical vs decorative needs. I’d actually paint the wall the same color and add shelving above radiator for balance, creating a lovely feature wall. Paint color and rug are important decisions

Layout: narrow down seating and desk type and find an on line room planner, adding dimensions and structural components to see what suits/meets your needs.

A site recommended here and is free and here is the link: floorplanner.com

Here are some additional photos to better depict the room. Room is approx 12x13

With all those doors, window and fireplace in the room I think a floor plan showing all dimensions is necessary to figure out what can be done for a furniture layout that will work for you.