It's your first time, your body needs to get used to it. Tell you what, if you feel that your gears kinda....not dissolved, which i doubt, but just in case.
1) get a bowl.
2) put it in the sink and get your gear
3) run the hot water in the bowl and put your gear in
4) wait for a little bit (bout a minute or so)
5) inject away using good technique

Good luck on your cycle.