@Nomorehope2 @seabird - Youtube is amazing and has several therapy channels. I like Therapy in a Nutshell and Dr. Tracey Marks, and the Crappy Childhood Fairy. I've done lots of IRL therapy and their videos are the same type of information and exercises and advice you get in therapy.
If you live in a city with a university that offers a Master's degree in Counselling Psychology, they often have free therapy from students about to graduate and doing practicums.
Some nonprofit organizations offer free therapy. In my city the local Suicide prevention organization offers up to 6 months of free weekly sessions. Mental health groups and sexual assault services may offer counselling.
Online and telephone therapy may be cheaper but isn't always a good option. Organizations like Betterhelp have been found to sell information to Facebook (I don't know what information but it still sucks). So I would check the privacy policy carefully if you go this route. I've had telephone therapy through my employer's EAP program, and they offered me the option to not have calls recorded so I chose that.
@may71 suggested Mind Over Mood, which is great, but for Cognitive Behaviour Therapy I prefer The Feeling Good Handbook because it covers cognitive distortions which I personally found really helpful.