Just driving away to some unknown place is not likely to help you, but could create more problems for you. In your current state of mind you could have an accident or worse yet, cause an accident. First I would suggest that you contact the National Suicide Prevention Hotline at 1–800-273-TALK (8255).
@DrasticDreamer has it right. Even if a suicide only affects one other person, it can totally wreck that survivor’s life for the rest of their life. Suicide is not a solution it, creates so much pain for the people that are left behind and at least some of them are likely to fall in depression and also consider suicide because they are left with all kinds of guilt and “if I could have only’s.”
You say you have no family to worry of. Not sure what that means. Do you have any familly members that are living? If so, you should reach out to them, even if you think they won’t understand (because they might not) but that doesn’t mean that they don’t care about you and wouldn’t be devastated if you disappeared. You’ve already said that you have talked at length with your friends. Pick one or two of them and tell them that you need to seek counseling immediately and ask them to help you find a good counselor and help you make an appointment.
Tomorrow, go to your HR (Human Resources) rep at work and let that person know that you need to take a medical leave of absence and that you need to seek counseling. The HR person may be able to help you find a counselor immediately. If you have a primary care physician, call that person tomorrow also, they will be the most likely person to help you with a referral to some good counseling. If you also go to school, your health center will be able to direct you to some good counseling.
Have a friend with you when you make the appointment and have a friend GO with you to the appointments. @Dog is correct when saying that you should probably be on a course of anti-depressants. They can help to put you in a more normal state of mind, in which you can make better decisions based on what is most likely to help you in the long run. The short run always stinks! The anti-depressants and counseling can help you get past the immediate pain so that you can think more clearly and make some decisions about what you need to do in the long run.
There will be time for getaways and @Dog apparently has lots of ideas to give you on that subject. Once you are feeling better, or more normal or just simply ok, then you can go on that trip. Bring a good friend or two with you. Go camping, go to a resort, go to Burning Man, go to Comic Con, go to Disneyland, go to Hawaii or Alaska. But go, as a living, breathing human being who appreciates that there is a lot that life has to offer, even if it’s not exactly the perfect idea of what life should be. There are plenty of disappointments along the long road called life, but there are also a lot of amazing, fabulous moments. But sometimes those moments are small and simple. They might be found in the scent of of an open fire in the middle of a forest, or in the sound of children’s laughter at a holiday gathering. Sometimes they are found in the taste of a really great meal, one that we can learn to make for ourselves. Great moments are rarely profound, they are just moments that are noticed in the course of every day life. Moments that make us smile and make us feel normal.
Life is not easy. Life is often unfair. Life is not usually how we expect it to be and we almost never end up with who we think we should be with or the job we think we should have. But if we give it a try, life can be good. It can’t be forced and we can’t always have what we think we want or deserve. But if we get those things that we actually need (food, water, shelter, humor, a few (or one) good friend, then we can make it if we allow ourselves to make it.