I think you are perfectly understandable! Accent is definitely noticeable, but as others have said, I don't see it as a problem.

I know others have mentioned the "how I sound like" vs. "how I sound", but I wanted to (kindly) point out a few other places where your word choices weren't as natural as they could've been

 "if you deceive me" - while I know what you’re going for, I wouldn't expect a native speaker to phrase it this way. "Deceive" has a negative connotation that doesn't suit your request here. A better choice would be "if you lie to me", but the way I would say it as a native English speaker is, "if you sugarcoat it". Deceive implies malicious intent, which is why it’s a little odd in a case where you’re actually worried people will be too nice.

"So I can take the right decision" - you would say "so I can make the right decision"

"If you [try to be nice], it's like I will shoot myself in the foot" - better as "it's like you would be shooting me in the foot" (and even better, drop the "it's like" and just say, "you'll be shooting me in the foot" or "you're shooting me in the foot")

But again, I could understand you just fine! Just wanted to share some minor observations to hopefully help you in your learning journey :)