Don't get me wrong

Say "Don't get me wrong" when you think that the people listening might misunderstand your opinions about something. For example, if you went to a Mexican restaurant that you didn't like, you can tell someone about it:

Don't get me wrong – I love Mexican food. But that place, I don't know. I didn't care for it.

You always follow "Don't get me wrong" with an explanation of how you actually feel.

I don't claim to (do something / be something).

Use the phrase "I don't claim..." to let listeners know that you don't have too high of an opinion of yourself:

I don't claim to have all the answers.

I don't claim to be the best cook.

I don't claim to be an expert.

People often say "I don't claim (something), but..." before sharing their advice or opinion:

I don't claim to be an expert fisherman, but I'm pretty sure that that's not how you're supposed to do it.

(someone) is some kind of expert

An "expert" is someone who has deep knowledge about something. For example, an expert in economics is someone who has studied economics for many years, and may have written books or taught classes on it.

When you use the phrase "some kind of expert", it seems like you have doubt about whether someone is really an expert. Imagine that your sister tries to give you advice on how to save money. You're annoyed that she's trying to give you advice, because you think that you know more about money than her. You can say this sarcastically:

Oh, are you some kind of expert in economics now?

Some other examples:

He tries to act like he's some kind of technology expert. Whatever!

It's annoying when people study something for a few weeks and then they try to act like they're some kind of expert.