Just wondering whether anyone can help/give me some advice

I'm fairly new on here but have been reading a lot of the threads for quite some time now
I got married from Pakistan last year - since then I have been working & im hoping to submit the application witout any legal advice.
My salary meets the requirement (£18k..) & I am in the process of collecting my wage slips. (I'm hoping straight after I get my 6th slip, I'm ready to submit the application)
My query is, whilst collecting my slips is there anything else I need to bear in mind? Like I am renting a property, so I've set up direct debit for bills etc. I withdraw cash on a weekly basis for rent/daily expenses.
Is there anything else I should be preparing for?
Any help/advice would be greatly appreciated!
Thanks in advance
