How to leave the country?

I'm suffering a lot.
I need help.
I need to leave the country. But I have no experience with passports, airports and foreign countries.
Any tips?

If a person who is not from the west is going to London or any other western country for the very first time what airport tips?

Or advice would you give?

I'm scared what if i lose my luggage after arriving over there and how should i make an exit after getting my luggage to the way from where my relatives can pick me i have been on domestic flights before but have never been on an international flight and to a majority english speaking country i know the airport basics are same in every country but usually airports in the west are very big and there are many terminals etc so it could be very confusing for someone who is not from the west and can read or write english but is not fluent in speaking please help

Would you believe that in the Southern Philippines, where I live?

Air travel was much more economically affordable to people in the 1960's and 70's than it is today…

My father used to fly way more frequently back in those years… Today, my father usually travel by boats from island to island because airplane ticket is getting so expensive nowadays than it is 40 to 50 yrs ago.