My 5 month old milestones

At Five months according to experts I there are certain milestones that I should be doing. I am meeting all of them. They are listed below:
- Can distinguish between bold colours
- Can roll over
- Amuse myself by playing with hands and feet
- Turn towards new sounds
- Recognise my own name
- Sit momentarily without support
- Mouths objects
- Started with stranger anxiety

My stranger anxiety is especially with mustached / bearded men, and I also get nervous when I wake up and suddenly new people are coming towards me (often when we arrive somewhere after a drive). I also cried when Italy won a world cup match because my Dad yelled "Goal!" and it scared me. I didn't know it was something good so I was afraid.