|Typically, the advice is usually to clone your present drive to the new one (your SSD).|
Most drives SSD or otherwise will often come with cut down version of one of the major cloning/imaging software players. Some used to use Ghost, some Acronis, some possibly Easus etc.; they all will do much the same... Presumably there is a basic how to do it (clone) included with the software?
So once you're happy your data is safe... clone the old to the new and switch the drives around.
Then switch them around
Presumably your system is desktop not a laptop (going by your info inyou tag lines). Just be sure to remove power completely - mains cord removed... - before taking taking the current drive out etc... If it was a laptop one would also remove the battery.
I would certainly ensure that all my data/personal fles are saved safely off the presnt drive - before cloning and drive swapping... Not likely thing may go awry and affect those precious/i don't want to lose files... But safety first is a good way to go...