Every new club need to grow up first, show their quality and attract more fans.
What would be great to have in mind is that you should set your ticket price according to your current level, don’t make it too expensive. Ticket prices heavily affect the match attendance and the number of fans that will visit your stadium. If the price is too high for the competition in question, your fans will not show up, which can affect your ball possession bonus during the live match. However, if the price is too low, your revenue will suffer. It is your challenge as a manager to find the right balance.
Also, make sure to visit Ground menu and, gradually as your club grows, upgrade your capacities.