Don't worry we got you! So let's start comparing great difference between MacBook Air and MacBook Pro.
The 13-inch MacBook Pro and Air are powered by the same processor and are almost same. Apple released a new model of MacBook pro with M1 pro and M1 max chips.
Air (13 inch) has 8-core CPU & MacBook Pro (14 & 16 inch) has 8 or 10-core CPU. Pro comes with 10-core CPU. The 13-inch Air has 8GB and 16GB RAM & the 14 and 16-inch Pro has 16GB, 24GB and 32GB RAM.
Storage of Air (13 inch) is 256 to 2 TB. Pro (14 and 16 inch) is 512GB to 8TB. Weight, Air (13 inch) is lighter (2.8lbs) than Pro (14 inch - 3.5lbs and 16 inch - 4.7lbs/4.8lbs).
Battery, Air (13 inch) - 49.9 Whr battery & 30W charger. Pro (14 inch) - 70 Whr battery & 67W charger. Pro (16 inch) - 100 Whr battery & 140W charger.
The webcam So for Air 13 inch it’s 720p FaceTime HD camera And for Pro 14 and 16 inch it’s 1080p FaceTime HD camera.
MacBook Air has 2560 x 1600 resolution and 14 and 16 inch MacBook Pro has 3024 x 1964 and 3456 x 2234 resp. Brightness in 13 inch Air can go upto 500 nits and the 2021 model of Pro has 1600 nits.
For a college student or an occasional worker MacBook Air is best and will likely do a fantastic job & if you are a creative professional then you should consider MacBook Pro 14 or 16 inch because of the larger size of display and upgraded SoC.