OP:
Before going further, questions:
1. How much space have you used up on your INTERNAL drive?
2. How much capacity does the new SSD have?
The reason I asked: If there's "more stuff" on your internal drive than will fit on the SSD, a "full clone" ain't going to work. You need to "exclude" some stuff. But if it will all "fit", don't worry about it.
Having said that...
Put down the drink. There is nothing complicated about cloning a drive.
It's so simple that
even I can do it.
Here's what you need to do.
I suggest you try it RIGHT NOW, as you're reading this posting.
1. Connect the external SSD (USB3, right?)
2. Does it mount on the desktop? Doesn't matter, we're going to re-initialize it anyway, so....
3. Open Disk Utility and select the SSD
4. Click the "erase" button
5. Choose "Mac OS extended with journaling enabled"
6. Give the drive a meaningful name that is DIFFERENT FROM the internal drive
7. Re-initializing the drive will probably take only a few seconds.
8. When done, quit Disk Utility.
Now... onto the clone process itself:
1. You mentioned CarbonCopyCloner, download the version that is specified for the version of the OS that you have from here:
http://www.bombich.com/download.html
(CCC is FREE to download and use for 30 days -- trying it costs you nothing)
2. Put CCC in the Applications folder, then, open it. Click the buttons to dismiss the trial notice.
3. You can accept CCC's defaults for now.
5. In the leftmost "box", select your internal drive (the "source")
6. In the box to the right of it, select your external SSD (the "target")
7. Click the "clone" button, then the "run now" button if that dialog pops up.
8. Sit back and let CCC do its thing. It may take a little while.
9. CCC may ask if you wish to clone the recovery partition as well. YES, I suggest that you do this.
10. When done, quit CCC.
Next, TEST the clone:
1. Power down, all the way off
2. Press the power on button and IMMEDIATELY hold down the option key and KEEP HOLDING IT DOWN until the startup manager appears.
3. You should see the SSD in the list of bootable drives. Is it there?
4. If it is, select it with the pointer and hit return.
5. The Mac should now boot from the external SSD.
6. When you get to the finder, it's going to look EXACTLY like the internal drive. In fact, the only way you may tell them apart is to go to the "about this Mac" item (Apple Menu) and check to see from which drive you're booted.
7. At this point, I suggest you start opening the apps you mentioned above. Do they work?
Try all this, and get back to us.
I promise you, it's easier than it sounds!