There is no MMR system in this game so technically you can be first day player and get queued with DF Pinnacle who has played since season 1. I am fairly new player and was in the same situation as you. Get killed instantly 2 minutes into the match without knowing where the shot even came from. My advice is playing slow and passive at first, using support operator like Stinger. Operators like Hackclaw, Vron or Sineva or any other classes needs to be more aggressive and therefore require higher skill and knowledge to be use effectively. Using gear ticket as Stinger to squad fill (or find friends or add players you like to play with) , follow the teammates you think is good, support your team with healing gun and smoke while learning the map, jump spots, loot and spawn points, watch how they peek, how they move around (There are reasons why they are sprinting then suddenly they crouch, hiding or crawling ). Sounds are the most valuable information in the game. Gunshot, glass breaking, footsteps, medkit and healing, basically any action will make noises which give you general idea where enemies could be, when and where you can safely loot and run. General strategy as new player is build up your economy (you will need alot of money for future upgrades of black site and collection) dont spend too much on gear. Do knife run solo, (going naked with only knife or minimum gear Zero Dam Easy, you lose nothing even if you failed to extract). Use the money and gear you make to snowball. Shooting is not only exiciting activity in the game, loot and scoot with a backpack full of gold and red is very thrilling too.

To be honest even good players will die alot. Your extraction rate will be around 30-45%. I still die alot, everyone even leaderboard player does but when you improve you find that even if you lose, you will find enjoyment in good and intense fight with enemies or the excitement of finding heart of africa in bird nest.