Odd usaully by day 7 for me I felt more energised focused, in a good mood. It may differ from guy to guy. But feeling anxious is probably all in the mind as to what others might think of me for relapsing as well as ypu mifht also feel you let yourself down on a certain goal to achieve.
Urges do feel bad at first and all of nofap feels bad at first and seem skeptical about it and also anxious as to the changes due to urges and stuff, but it is all good.
Compare it to exercise, you don’t lose 1 kg or 1lbs for example directly after your very first exercise, no it takes time for ypu body to burn you calories you have in excess and then it works on your fats. Maybe you might see changes after a week or so depending on how long you exercise and the intensity thereof.
The same for nofap in a way, but since it is a habit you have withdrawal symptoms as wel as remember your body is use to the habit as a factor and it will definitely affect your hormone levels sexual hormones, also your “feel good hormones” and especially the reward centre of your brain and that’s also the release of dopamine.
So you got your dose of dopamine and that’s why you feel good and ‘normal’ because the habit is done and you got your fix.
In time you’ll start to notice changes like if you workout your muscles might grow a bit faster as your body gets a boost of testosterone. Or your hair grows faster in some. Etc. Some changes are small but you’ll notice it.
The down side to it is you hit a flatline and sadness due to this hormone imbalances.
It will sort it self out the longer your streaks last.
Also the best thing about it aswell is the time as the time you might have used to watch porn you could watch a awesome tutorial on a hobby of yours like games, or instrument you play or something odd like how to solve a rubiks cube.
You can rather skill yourself up then to watch porn.
Good luck and stay strong and awesome