With an existing long-term client, asking for a price hike is tricky. However, it is not impossible.
I work as a full-time freelance Coding Tutor. Career and Life Coach. Hire me at UpWork or Fiverr or GitHub. see my personal website. hobbies at Behanceand Unsplash and ArtStation . Also, podcast about life. and my Coding YouTube Channel. and also, my Movie YouTube Channel. and my travel instagram, and finally, updates about my tutoring life on threads app