(c#) with front end frameworks extjs and angular,backend sql server,entity framework.

My long term is to be an architect or solve most complex problems or deal with performance(dont want to enter into any managerial roles).

When i look at my exprience i feel like iam stuck, feeling like ' jack of all and king of nothing' , want to start something(books or videos) and finish off , but directionless, start with what?

Workwise iam contributing just like any other 8 year or 9 year old one in my team.

 hi i worked at  company 1.5 years I followed each terms and condition as I was fresher that time and I hadn't more knowledge about How IT sector works regarding documentation, I given proper notice period of 2 months worked till the last date,  last day met to boss said thank you to him, He told me that he will send me my salary and all letter on 5 december/2018.  I believed in him and I joined a new company after one month when I haven't got any calls or salary or any letter then I went to office after talking and asking why I being delay then they give me salary and clearance letter and also mention that i has resigned from there employment and getting relieved from my duties after 30th Nov 2018 after 7 pm,  and told me that they will give experience letter after looking all work that i did because they are busy,  but again its been 3 months and i haven't got my experience letter.i mailed them but they are not replying  i also  texted to boss on whatsapp but he is ignoring my text, 

                       *Here is what i have from First company* 

   1 Offer letter  

   2 every month's salary credited in my salary accounts so I have bank slip, 

   3 Email regarding notice period and my last date of working, 

   4 Email with my clearance  letter in soft copy, 

   5 emails regarding salary delay  

* Here what I am getting from my current company  

   1 Offer letter  

   2 every month salary credited in my salary accounts so  I have bank slip,  

   3 they also send me salary slip every month

 

    What happens if I don't get an experience letter? 

   Will my experience Year from first company counts?

 

you can also give me other sugestion

I have 2 year of experience in .net, I want to learn MongoDB and Angular6 for my skill enhancement. Please guide me...