Where to get decent training and get adequate confirmation of your knowledge?

Question

Professional Certification

Good afternoon colleagues.
I have been developing software for more than 3 years and this is my favorite job)). But from time to time the question torments me: how to adequately assess my knowledge, how to understand that I really know and understand something? Perhaps someone has come across and will understand - a task comes up for a couple of days (or a couple of weeks) of development, you dive into it, deal with something, and as a result, after passing the review, the pull request is merged into dev (and you figured out which - a tiny problem in some field of knowledge). But you don’t get a complete idea, you can’t say that you know something, only some features and general things about the mechanisms of the server, selected TDD questions or BulkInsert features in MS SQL.
Please tell
me 1 - How to evaluate your knowledge adequately?
2-How to understand where to develop and what to learn?
3 - How to create a complete training program?
4 - What certificates to get and be sure that the employer will not have the thought "probably learned from the dumps to poke correctly, bullshit his certificate." What are the best online courses to take?
* I am developing Web applications on ASP.NET MVC + the main stack (PostgreSql, MongoDB, MSSQL, EntityFramework, AngularJS, C#, vanilla js a little ... and a lot of little things).
Bud would be very grateful for any help or advice.

Answer 1

The best confirmation is a cool acc on github

Answer 2

1. Nothing, all assessments are subjective. There is always room for improvement, so knowledge is never enough.
2. Look at current things on your technologies, take tasks that have not yet been solved and will make you think.
3. In my opinion, you need to start from tasks, and basic things can be Googled (Yandex puts out a lot of lessons and courses, on all topics)
4. Depends on the employer, I met many who are pleased with Bitrix certificates and they are written from them, but there are those which and from Cisco spit. If you are interested in C #, then Microsoft has its own certification programs.