Thieves Guild

[Necro]

I'm kinda stuck with thieves guild jobs. I already did all the jobs for sugar lips, the jeweler and that high elf in Sadrith Mora. When I went to the guy in Vivec (can't remember his nam), I got stuck after I convinced two fighters guild fighters to join the thieves guild cause (fire eye and some guy in Sadrith Mora). Now I wanted to do another job but I had to be a grandmaster. I asked for advancement, but I needed to do more jobs to proove my loyalty. I can't anymore jobs, can I? or is there something I overlooked? HELP ME PLEASE!!!!!