Go for it! If you find someone you really click with and you really want to spend time with them then one day with them when you both can is far better than lots of days with someone who is not right for you. You can still see your friends and family, go to work, have your hobbies and have a full life! Work at things and have the right attitude with this and it can turn into something very special and maybe you will find this is the love of your life and your soul mate too.
The reason a lot of these do not work out is because one or both of them really wants it to be more full time and/or they get worried that the other one is losing interest or playing away or neglecting them. Most people who have a busy and interesting life and who are feeling good about themselves would find it easy and enjoy it.
Do make sure it is for you before you get into one as it is very hard to try to work it all out after, especially if you are often apart. It is also very difficult to end it once you have become involved.
Long distance relationships, LDRs, work.