@elliollie ah, neck will heal, and if wounds are all sealed and healed now you should be able to cover in foundation but only if your team give to the ok to do so. Treat yourself to a few new make up sponges. A good make up sponge and a good foundation are a godsend.
Have a look also at foundation bases. Not sure if you have ever used before but they are great at providing a support base for foundation, covering, fine lines ( I have many now I'm old... ) facial scars (got those too under my bottom lip and chin - merry go round accident in 1979.. I fell off aged 8 and then went face down under the merry go round ,got trapped under it,while it continued to spin around with all my friends on it...my face was nicely grounded into the dirt and hard core and the full weight of the merry go round pushed my face further into the mire.. hospitalised.., got loads of cuddly toys, a Texas bar... 30 metal Mickey yellow fizz bombs.. and a blue furry toy pet cat in a basket with blue check gingham bow...was famous at sch for 2 whole days ...long story and before the days of HSE) etc! I use a Christian Dior base but have a look yourself and see what suits you best. They basically provide a moisture rich film platform for your foundation to sit on and hide a multitude of sins.
Enjoy your NYE dress shopping. Post a pic of your dress/ensemble on NYE ( identity blurred obvs) , would be lovely to see you in your finery about to have a good time,that you so richly deserve. Enjoy! Also enjoy your cruise next year.
It was all ok in the end OP. Sometimes words from the outside can help reassure when those in the middle of the storm cannot see the wood for the trees.
Thankyou for your bravery, and all the other posters, in sharing your story/ies, it's defo helped me put my scars in perspective.
Merry xmas OP and a very happy healthy 2019. ( don't forget NYE ensemble pics).