Your fingers will hurt the first weeks of guitar. The calluses are what learning looks like on the outside.

Early discomfort in a physical skill is not a warning. It is your body adapting to something it has never done, and the sore fingertips are literally the change taking place, turning into the hard skin that makes playing possible. Knowing that makes the first few weeks readable instead of discouraging. Most people who give up a physical skill quit during the part that was working.

Give whatever you have started a fixed stretch before you judge it, and six weeks is usually enough. Practise in short sessions rather than long painful ones. Treat soreness as progress unless it is real pain in a joint.