Yes it is worth it. Really sit back and look at the path you want your whole life to take, heres are two options.
Path 1 become a doctor
spend 8 years in a school enviroment where all of your time is around other young people who all want to better them selves and become some of the most succsesful people around. Med schools will be hard but you will enjoy it more thn you think and think how good you will feel when you graduate.
In med school you will have little pay but still make it for 8 years then when get out you have one of the continually top 5 highest paying jobs in the country. You will pay down student loans in a few years if you are smart about it and prioritze paying down your debt.
After med school you will lead a healthy life as a respected memeber of the community enjoying the chalenge of what you do and getting paid well for it. There will be plenty of time to enjoy life as you get more established you will have the abilty to set your own scedule much more than most jobs ever do.
You will never have to worry about if you are going to make the rent. You will be able to pay all your bills with out thinking about it and provide the kind of life that everyone wants for their family.
Path 2 do something else
Don't go to medical school try to get a job with a pre med degee and see what you find. You will find it hard to find a good paying job. You will stuggle to make ends meet doing other jobs like waiting tables or something. You will actually find less time to live your dreams because you will be contiually worried about money.
You will end up having to go back to school to get more training so that you can pay your bills. You will probably do something like nurseing because you have a little expirance in the med field.
You will end up working longer hours for less money and be less inelectually stimulated. You will work for doctors who are not as smart as you but you will still have to follow thier orders. You will see doctors who making way more money and doing less. They will seem to enjoy life more than you and you will regret your decision.
If you need more proof look at unemployment stats. The higher degree you have the less likley you are to be unemployed. In the end there are lots of people who don't have the oportunity to be in your shoes but would kill to do be. How many times have you met doctors who were like man I wish I had never put in all that work and done a jobe that paided way less so I could run a few races in my 20's?