Generally it is not a problem for people to understand what you were saying. However, if you want to build your character in a positive way, or if you want to gain more trust from your audience, you might want to say it in a more grammatically correct form. That might be like this:
```
Hi, everybody, I have watched a program on the Tencent Video which name is "How to learn any foreign language in six month". I think it's helpful for my English study, so I('d like to) share it at here:
How to learn any foreign language in six month
I have not written or spoken in English for long time, so all above may have many mistakes, but if you can know even a little about what I mean, i will be very happy.
```
Please note:
1. there is no space between the end of a clause and the tailing punctuation, and there is always a space between a punctuation and the starting of the next clause.
2. when a comma is used to separate two clauses, a conjunctive word should be in place to separate the clauses, otherwise use period as opposed to comma.
These are my two cents. :)