If you have given one or even more than one piece of advice, this is how you should say it -- I hope this advice can help you. This is because advice is a mass (uncountable) noun (that is, it has no plural). Use of "Advices" when meant as "multiple opinions which act as guidance is incorrect. For example -- I didn’t receive much advice. (correct) I didn’t receive many advices. (wrong) I would suggest to go through this link where this concept is explained in a very good manner - https://jakubmarian.com/advice-or-advices-singular-or-plural/

This / my advice is correct no matter how little or how much advice you give