The phrase "I have advised" is correct and usable in written English. You can use this phrase when you want to express that you have given counsel or guidance to someone. For example: "I have advised my friend to find a new job, as her current job does not fulfill her.".
I have advised governments on these issues.
I have advised my kids to do that".
I have advised several friends to retreat from becoming too involved in the tragedies of others.
"Looking back, would I have advised Russia differently knowing what I know today?" he writes.
"I wished it would never happened [sic] and I had advised you before," he wrote.
"Since the beginning of December, I've advised 60 people to walk away," said Steve Walsh, a mortgage broker in Scottsdale, Ariz.
Next thing I knew, I was holding in my arms this child I had advised her not to have.
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK