Am i missing out the best sexual years?

Hello guys, i am 17 years old male and what i mean by "the best sexual years" is between 12-17, i had some one time experiences like kissing but i have never had any sexual experience with girls,(unlike my peers ig) and i feel like a loser bc i always hear my peers around of my town or on internet that they had already so many stories and experiences about this and this decreases my confidence, i feel like a stupid who does not know something that everyone knows but me.. and ask myself how do fuck people find so easy and i dont know anything about it

Am i missed out best sexual years of it? Wont i want sex at future like this? People sometimes tell me that i missed out almost everything because my hormones wont be strong as right now when i grow up so sex wont be great?