Ngl, been too lazy to read the other replies so sorry if I say something others already said, this is just my advice.
1. MOST IMPORTANTLY:
A lot, and I mean (sadly) A LOT of therapists suck. Not every therapist is gonna be a great match for you. Okay, maybe not all suck but obviously every one differs. Maybe you need someone who is more straightforward, maybe you need someone gentle, maybe you need someone to kick you back into reality, maybe you need someone to reach into your bubble first. Don't be discouraged if this one doesn't fit, or the next one, or the one after that. Finding the right one is worth it. I promise.
2. What you should not say:
If you are comfortable enough, you can voice that you are feeling suicidal. Depending on the therapist, this will not immediately get you yeeted into a psych ward. What you should not do, as it raised alarm clocks, is voicing that you have a concrete plan. This usually wakes up the alarm clocks. Give them the feeling, that you are trustworthy to be true when saying, that you do not plan on taking your own life aka ability to follow agreements.
However: if you really feel like you will not make it another day, do not be scared to say that. They can help you. It doesn't necessarily have to be directly a psych ward, they have other ways to help. I am not encouraging you to not say when you feel like your life or the lives of others is threatened.
3. Remember:
- it is okay to cry, that means you are processing things
-it is okay to take your time with answers (even if your therapist is a dickhead and tells you otherwise)
-it is okay to be cautious at first
-it is okay to be honest
-it is okay to trust them (whenever you feel ready to)
-it is okay to be uncertain
-it is okay and normal to feel miserable afterwards, after all you are finally pouring your heart out to someone that will try their best to understand you
-things take time, allow yourself that time to cry, to progress and to heal
-do NOT listen to them if they try to tell you that others have it worse and to stop self pitying yourself, these people are NOT professionals, just assholes
- and therefore, it is okay to change therapists if you feel like it is not working out
I hope my reply is not too late or maybe someone else in a similar situation may find this helpful. I am proud of you for taking that step towards recovery!
Best of luck, you got this!!