Your boyfriend is an idiot. That said, mushrooms and MDMA can heal very deep trauma. Stay away from LSD, it can be re-traumatizing, especially in high doses (sorry krenshaw). It does however also get trauma to surface which can then be released by mushrooms or MDMA.
I think what's worth mentioning here is that
any psychedelic with the wrong set and setting can be just as traumatising as it can be healing. It's rare that a psychedelic will change your life in a long term negative way but they can really bring to surface those emotions and negative thoughts you've tried your best to keep at bay, and tried to hide from yourself.
If you're ready to deal with them, and work through them, then it can be a cathartic experience that can release you from your past suffering and let you move forward with your life - but if exploring such an avenue of therapy you have to be prepared to face the darkest of those feelings during the experience, and to be able to confront and beat them. This is why it's extremely important to be prepared and only do it if you know what you're doing and have someone you trust fully there guiding you through it - who also knows what they're doing.
Each psychedelic has its own effect profile and for some people most psychedelics will be healing to them, for others psychedelics are something they're not comfortable enough with for them to be a useful tool for them - and for others certain psychedelics will help, while others will do little or make things worse.
If you consider this I'd really recommend deciding very careful on the setting, the trip partner, and what psychedelic you go for - since it really depends on what works well for you.
The classic tryptamines like mushrooms, other 4-substituted tryptamines, DMT, and similar psychedelics, are known for being profoundly emotional, to both extremes of the scale. They'll unlock every door to every one of your hidden secrets and fears and throw them out all over the floor for you to witness - but they can also produce that profound healing relief when you face those fears and decide how you're going to get over them. They can be very difficult and trying experiences though.
Classic phenethylamines like Mescaline, 2C-B and the like tend to be less trying and difficult emotional experiences, but as a result they may require more work and guidance from you and your sitter to get the desired result - however there's usually less of a potential for extremely emotionally painful and difficult experiences.
There are others like LSD that are more mixed in their actions and harder to predict how it'll affect you - for some it's more like mushrooms and deeply emotional, while for others it's more of a controllable experience like traditional phenethylamines. It's one you really have to judge for yourself.
I can only say what helped me personally - AMT, as I already mentioned. AMT is a triple monoamine releaser (think empathogen, like MDMA) *and* a typical psychedelic like mushrooms or LSD. This combined effect profile allows for the same deep life-changing experiences one can experience during a psychedelic trip, while feeling safe, warm, and loved, wrapped up in the loving glow of the empathogenic side of the drug. This effect profile really did wonders for me and while I'd tried to seek therapy via psychedelics before - I'd had no luck until AMT, which was a game changer, putting everything right in one trip with my best friend. Though I'd have to add that if you have PTSD, some people with PTSD are sometimes prescribed things like SSRIs or MAOIs - which can be dangerous in combination with AMT, so you can cross it off the list if you're on any of those.
It may be one worth considering if you go down this route - but like I said, all of this requires careful consideration, and you shouldn't even consider this route unless you feel completely comfortable with it and have someone you trust who can help guide you through the experience.
Taking a psychedelic with the goal to cure yourself will achieve nothing other than show you your problems - I am very firmly set in the belief that to actually heal you require another person there, a guide, who works through those problems with you and takes you through the experience safely, letting you learn and grow and come out the other side a fresh new healthy person.
I think the first step is to try and make sure you feel more calm and comfortable in your day to day life - find a comfortable routine you like, make sure you're surrounded by people you trust, and that you have a sense of peace and know you have somewhere safe you can go. Then when you know you have some anchor of safety you can consider such a method to finally rid yourself of the PTSD that's been haunting you.
