Astrology I think works better when they focus less on predicting people’s characteristics than looking at people’s patterns in their life. If Saturn is returning to your “insert astrology term here” that means 29 years have happened which means great changes which is pretty typical for humans. People go through big changes at their late 20s and late 50s / early 60s. Since the stars goes through regular patterns and using this a time based guide a lot can be understood about human nature. This is a lot of astrology but the patterns at birth is more popular or at least the most commonly understood portion of it.

Tarot is also a great way of reflection and introspection by giving external prompts which allow a jumping off point for story creation and reframing. Lot of creative processes recommend this external semi-random prompt because it changes you from your normal thoughts. This allows you to think about what happened or what you want to happen and gives a story and a new perspective. Humans are naturally story tellers and pattern seekers and this taps into that. This reframing is a evidence based therapeutic technique that works.

Also if it makes you feel better in your own head that means it works. Everything is based on our mental state so what is difference