Asalaamu'Alykum,
The assistance offered so far has been good Mash'Allah.
I can relate to what your saying. I remember in school we had a prayer room which was used by 4 Brothers including me. That's one student and 3 teachers. So, i always hoped that they never made me do anything, just Pray and leave for class. But one time, only one brother was in school, so for Zuhr he said to me "Give the Iqamah" or "Do you know the Iqamah" i replied shyly "No, i don't know how to give it". I can't remember exactly.
So at the same time i was shocked, felt really stupid and just added upon my misery. His face was like "I can't believe he doesn't know the Iqamah". So he gave it i think or we just prayed i can't remember.
That was the worst moment of that day on top of other difficulties in school.
But the point is, i knew i needed to learn about my religion but on my mind was "i need to learn how to read the Qur'an" or rather "i just wish i could pick up a Qur'an and read it in Arabic". Guess what, with
Effort, Constant Supplication and Perserverance i made it. You have to start somewhere, beating yourself up will keep you in that position of knowledge your in but
taking action will result in you moving forward.
But the best part of it all was this... After i found a centre upon the true path of the Salaf with loads of other reasons as well and 2-3 months passed. On one particular Jumu'ah sat at the front waiting a couple of minutes for the Athan to be given so the khateeb could begin the Khutbah. And after some time in to the sermon i just glanced across the room because brothers are walking in and you hear just a sudden noise which attracts your attention. I glanced across the room and there was that same brother in the prayer room at school i used to pray with sitting on the second row. I was absolutely shocked. I didn't think he would be here.
So i decided i would try and approach him at the end of Prayer after praying my Sunnah. But, i couldn't because a brother was praying behind me and next to me, i was sort of surrounded.

He left before i could get a chance to give my Salam.
I thought, next time i will get you

Well more like "Insh'Allah next time". A few weeks passed i didn't see the brother but my opportunity came. Near the exit of the centre you have to climb down some stairs. I stopped him because he didn't recognise me, i said "It's me Nazim from Immanuel (<- name of school)". He replied "Mash'Allah", he was shocked, i just smiled and walked with him out of the Mosque. He had his kids with him too. Mash'Allah.
Looking back now and i am thinking, in that prayer room when he realised i didn't know how to give the Iqamah he must have thought "My son can give the Iqamah but this 15yr old can't, La Hawla Wa La Quwwata Illah Billah (There is no might and power except Allah)". Think about it, if i had been exposed to that, it would have hurt soooo much. But Alhamdulilah. All that led to today. Subhan'Allah.
That just soldifies my point, you have to start somewhere. Subhan'Allah that just puts into perspective how the
little contributions build the tower. Come on brother, ignite that flame, you have the key.
May Allah make it easy for you in your pursuit of seeking knowledge and bettering yourself. Ameen.
Insh'Allah this helps to what your feeling and how to sort it out. I may not have answered some of your difficulties but i think the reply combines all of them. Insh'Allah
Alhamdulilah
Sorry for any spelling or grammar mistakes.
Walaykum Salam