Does this happen to you?

Like today I reached my peak blitz at 1550 then I thought to play more then I lost games 4x row and now i am 1510 (this was sad)
I finally crossed 1500 in rapid after 6 months and I am sure I will come back down but who knows
Witch rating is more indicating your chess real strength
And why do I have bad days more than good days?

Any experience

Sounds normal, everyone experiences few wins and losses in a row.

It always happens to me

How do you overcome that sadness
Like reaching your peak and coming back down

Just rest, study a bit, and then come back in a better mental state.

There is no reason to be sad , Your best rating is always someone's worst . Don't even care about it

@Ameershahul29

To have good rating, there are some tricks,
but to have good knowledge of the chess,
we must know tactics and positional game.

Keep practising why depend on silly tricks such as farming.

So basically rating isn't that important
Yeah a lot of them are farming
I do watch chess videos on YouTube
Yes I just don't know when I will be good in my mental state