Congratulations on starting your journey as an entrepreneur! Setting the amount you will charge for advice is a crucial step. If you're referring to a platform or service you're using to offer advice, typically, there should be an option within your account settings or profile to set your rates.
If you're doing this independently, you can determine your pricing based on factors like:

Market Rates: Research what others in your industry are charging.
Experience: Higher experience can justify higher rates.
Target Audience: Consider what your clients can afford.
Value Provided: The impact of your advice on clients' outcomes.