Horny

For about 3 years I’ve been feeling ‘horny’ to an extent but nothing major, like I could never feel good or satisfied after masturbating

Now I’m 17 and over the past about year I’ve been getting more horny as my friend came out as bi

This summer it has gotten more intense, especially when I think of women more and this leads to me masturbating at least once a day

Does anybody know what has happened as it’s gotten more intense over the year. Is it just hormones? Or am I becoming more knowledgeable about my sexuality?