New photographers tend to price a first paid shoot by guessing at what feels fair, which usually means pricing far too low out of nerves. That undercuts the local market and makes the next price increase feel bigger and scarier than it needs to be.
A steadier approach is to work backward from a real number: add up the hours of shooting, travel and editing a session actually takes, multiply by a rate you would accept for any other skilled work, then check that number against three or four photographers in the same city with a similar style and experience level.
It is fine to start at the lower end of that range while building a portfolio, but the range itself should already reflect the real time cost, not a discount for being new. Clients judge value from confidence and clarity far more than from the number itself.