@Leo23j welcome to the forum! Nice first level you created and shared with us. Many will find this one very easy as there is only the single path for B to follow. What I do like is how you incorporated different types of blocks and sliders, even a motor. You also have what we call a free-draggable: a draggable block attached perhaps to other metal blocks, but not to a slider or motor in order to control its movement. This is why it rattles so much (and if it wasn't for the stair block, could have even been popped out). Because they can become unwieldy and cause other problems including unwanted shortcuts, they're usually avoided in design. Anyway your level was a quick and gratifying play. Thanks for sharing!
A very nice level that I actually used a trick to win and then after reading @nGord's comments I tried it again without using any tricks. Thanks for sharing.