Potion, common
When you drink this potion, you gain a Climb Speed equal to your Speed for 1 hour. During this time, you have Advantage on Strength (Athletics) checks to climb.
This potion is separated into brown, silver, and gray layers resembling bands of stone. Shaking the bottle fails to mix the colors.
Notes: Set: Innate Speed (Climbing), Advantage: Athletics, Buff, Movement, Consumable
Suggested Value: Potion of Climbing = 180 gp according to this nifty spreadsheet of 5e items that I found online.
That's way too expensive. Like a standard potion of healing, it is common potion, which has a price 50 gp according to both the PHB and Xanathar's Guide to Everything.
Common is a Range of prices.. not a given price
what am I suppose to do
Just do your best, friend. Drink a Potion of Climbing to get yourself outta that hole.