I have kids your age, so excuse me if I take your parent's view on this discussion. You may choose to stop reading now after that revelation or you may choose to read on for a neutral view from a total stranger.
A few points on why you must study as much as you can afford to -
Direct and irrefutable co-relation between earning levels and level of college education attained. Statistically proven that the saying 'Padhoge, likhoge toh banoge Nawaab' is absolutely valid. More earning does not mean happiness - it means more options in life, be it what you do in your free time, what restaurants you eat, what you wear, where you live or how good a health-care you provide a loved one when they are seriously ill.
A successful life consists of doing stuff you hate doing, day-after-day and doing them well. The secret of success is all the stuff you absolutely hate. . . well you have to do them anyways. So whatever it is - waking up early, eating Karela, being polite to very nasty people, cleaning up your room, washing, ironing and wearing shirts Spotless White. The Armed Forces drill this into the cadets by making them do one thing everyone hates, as soon as they wake up - make your bed impeccably. There are sufficient articles by great and successful men on the efficacy of making the bed as soon as you wake up as a tool to remind you this.
So, if your parents can afford to spend on your education or you have access to an educational loan, study as high and as well as you can. Force yourself to put in one hour of study after your body says you can stay awake no more. (Ask me how!)
Despite being ahead of my peers in most things and a Masters, at the age of 40+ I still regret not having listened to my parents and studied harder. Remember that the age where you think your parents are 'stupid' lasts from 13 to 26 years. After 26 you become wise enough to realise they are far, far wiser than you.
So get off your derriere, shut the WiFi and study. When you are taking your loved ones to Europe for New Year's Eve in 2030, travelling First Class, you'll thank me for this post!