If you are new to these terms then it is very much necessary to know the difference between them because at the first sight it looks very similar.
A horoscope is the monthly forecasts for each sign that you find in newspapers and magazines. This is where the misconception that astrology is only about prediction and the sun signs. It’s not. Horoscopes are just one aspect of Astrology. Astrology is much more than that.
Astrology is the study of the planets, asteroids, and other celestial bodies’ interaction with humanity/nature. It combines mythology, history, psychology, astronomy, geometry, and another shite. There are so many things to consider. There are different types of astrology Western, Vedic/Indian, Chinese astrology. There are also different branches of astrology such as Mundane, Horary, Natal, and Electionary/Event astrology. Evolutionary is more of a newer branch and it combines astrology and psychology. Astrology is a bit more professional out the other categories.
Psychic Reading is not really in the realm of astrology. It’s more of metaphysics and it’s its own separate thing. Even so, a lot of astrologers do metaphysical work (palm reading, psychic reading, Healing, Energy work, Tarot reading, Numerology, and Crystal work, etc.). Psychic reading has a strong association with astrology and contributes to the misconception that astrology is only about prediction (which is bullcrap). This is more spiritual and hippy/dippy than the other categories I listed and it requires belief and faith.
To add one more topic, the occult and esoteric similar to metaphysics but its a bit more taboo. It involves researching hidden knowledge and topics. Such as Astro-projection, Alchemy, Akashic Records, Atlantis/ Humanity’s origins, Kundalini, Sex Magick, Alternative Spirituality and Religions (such as Voodoo, Kabbalah), exploring different dimensions, Conspiracy theories, etc.). This is some next level shit and it’s not for the faint heart (such as dealing with other world beings). If you are a thrill seeker and want to uncover the hidden truths of the world, then this is for you.
One last thing, Astrology is different from the rest because it’s a bit nerdier, uptight, and tame and it can definitely be a gateway to other metaphysics topics and the occult. Astrology relies on ancient teachings and knowledge passed down (like some of the other things mentioned) but it’s a bit more traditional and tame compared to the others. BTW for the politically correct ass hats out there, this is not a bad thing or disrespect to the other categories. Whatever the case if you do want to delve into it, it’s going to be a lot of reading.