Yup.
Ignore the trim numbers.
They are of no interest to a light aircraft pilot.
Trim should be thought of as a way to hold the attitude you want. It is not a control surface in itself.
When you hit 2000 ft, level out with pitch (elevator) using your stick or yoke. Initially you will need to keep holding forward pressure to hold the altitude. The amount of pressure needed will increase as the speed increases. Once the speed has stabilized, start adding nose down trim one notch at a time and slowly reduce the amount of pressure until you can let go of the stick and the altitude remains steady. Likely you will have to add and reduce a couple notches a few times, back and forth until you find that sweet spot. It is a lot harder in the sim than IRL because you can’t feel the pressure change in your hand. With practice you will be able to level out, make a small adjustments and go get a coffee.
The same when climbing. Don’t pay any attention to the trim numbers. Pull the nose up gently with the stick until you see 1500 fpm on the VSI and hold it there. Assuming you are flying the 172, let the airspeed drop to about 70 then add enough power to keep it there. Once the speed stabilizes, trim nose up in small adjustments until you can let go of the stick and it will continue climbing at 1500 fpm at 70 until the air gets too thin.
MSFS is not so accurate that things will remain stable indefinitely so minor trim adjustment will be required occasionally. Just remember to make very small changes, wait for things to stabilize then adjust again if required. I have trim mapped to my hat switch on my stick so that quick single clicks allow me to make little changes or hold for a second to make bigger adjustments. Trim on a sim takes a while to get the feel but it will come. Again, don’t fly with trim, use trim so you don’t need to fly.