Help!! Decor advice needed!

[Makemineacabsauv]

My lounge is tired and needs a revamp! We have wooden/laminate floor as the lounge is the gateway to the rest of the house so carpet just gets wrecked! Suite is brown fabric (nicer than it sounds) and lounge is currently brown and a teal blue colour which is nice but had it too long.
So.... can’t afford to change suite but open to wallpaper as well as paint. Any ideas on colours? Designs? Could get new curtains as current ones set the colour theme at the moment. Bland fireplace but can’t afford to change it - beech weeps effect and not my choice but needs must!
Any ideas very gratefully received! TIA.