You are in a rough spot. From your image, your /boot partition is only 332 MB. By default fedora’s installer makes a 1GB partition.
You appear to have multiple systems on this one disk. I see two ESPs and you should only have one.
If you are willing to do some surgery, you could delete the partition (Looks like a second ESP) in from of the ext4 partition that is boot. Delete the ext4 partition that is the bootfs for your bluefin install. Combine those two together and edit the /etc/fstab to have this be your new bootfs.
Then make sure the Original ESP at the beginning of your disk also has the contents of the ESP for bluefin.
Honestly… I would reinstall since there is a lot that can go wrong and not dual boot on the same disk.
Thank you for your suggestion. You’re right, i have two OS on one disk. If want to reinstall & single boot Bluefin, should I wipe both OS (including its ESP) first, or should I use automatic partitioning?
Kinda worried about partitioning because i have lot of data here.