thanks

Finally I returned home after 3 months. How much of a welcome will I get? (How much of a welcome I am going to get?). There are two sentences here since there are two ideas. 'Finally I got back home after 3 months away' is not wrong, but it is colloquial (due to 'got back') and not formal English. You can omit the 'away' as it is understood. 'How many welcomes do i'm gonna get' is rather bad although it can be understood.