I sprung for a tool to prep coaxial cable for termination. When the cable is properly inserted into the tool, the outer jacket and various shielding are removed in the proper amounts to help make it easier to slide the connector onto the end of the cable.
It should be worth noting that when using tri or quad shielded cable, the only foil shielding that needs to untouched is what is stuck to the center insulation. The other layer of foil shielding found on tri & quad shielded cable should be removed.
The braid shield should be folded back as evenly as possible. With that, compression connectors should slide on fairly easily...ready to be compressed.
For what it's worth, I use either Belden compression connectors (which are largely used by service providers such as Verizon & Comcast) as well as Arris Digicon DS6Q compression connectors.
Here is what I use to prep coaxial cable:
https://cableprep.com/drop-cable-tools/stripping-tools/super-cpt-cable-stripping-tools/This is what I use to compress connectors:
https://www.techtoolsupply.com/RG6-RG59-RG11-Cable-Pro-Compression-Tool-p/lcct-s59-11.htmWhile expensive, I've found that good coaxial prep tools stocked by Home Depot work just as well.