I would only use Sharkbite in an emergency situation. And I'd never trust any adhesive on copper. It's just not difficult to successfully solder copper pipe. Clean the mating surfaces to the point that they are nice and shiny, don't get fingerprints or any other contaminants on the cleaned surfaces, apply flux to both surfaces, insert pipe into fitting, heat the joint with your torch (propane will get the job done), and apply solder to the edge of the fitting until capillary action draws the solder into the joint. Don't disturb the joint until it's cool enough that the solder has fully solidified. Wipe off the remaining flux with a wet rag. Done. Practice on pieces you won't actually use until you're confident that your technique is satisfactory. You can probably find a gazillion YT videos demonstrating all of this, if you'd find that helpful.
