First, try having a look at the resources in your area. Many places offer free therapy for those who need it, and many schools/jobs have therapy services as well. There are also therapists who work on a sliding scale, so you pay what you can instead of their usual rate. Aside from that, there are online services like 7 Cups, including the self-help guides here. You could also look up methods to dealing with the things you're struggling with, as many people have gone through similar things and have shared what works for them online. Things like challenging negative thoughts, meditation, exercise, reality checking, guided thinking, and gradual exposure can help, and you can learn a lot about them online.