Another thing you could do, is a level 2 course at college instead of resitting your GCSEs. Theirs so many other options you can do!
1) Apply for a full time course (BTEC level 1)
2) Apply for an apprenticeship (level 1)
3) Job (Something like KFC etc.)
However, if I would be you, I would apply for a level 1 or level 2 course and when doing my course I would attend GCSE re-takes lessons. Resits are in November so you can study over holidays to avoid failing your re-sits and studying for another x years. If you really don't want to do GCSEs you can apply for any level 1 course and do Functional Skills. Functional Skills are much easier but then you can't go to uni and you may struggle with finding a good job as many people prefer GCSEs.
If you just finished year 11, don't worry about your results! They are usually much better than you think!