I have encountered similar experience, due to childhood traumas and highly embedded and ingrained xian programming.
Meditation was a sort of internal struggle between a programmed xian part (deriving from childhood) and a part of me striving to be a successful SS in meditation and other actions.
I am not able to describe better than "parts of yourself" those internal conflicting mind parts. I think they can be heavy thoughforms, vampiric influcences, also internal mind "parts" also. I am studying to find a better perspective on this.
This is highly draining in terms of energies, so you may feel low in energies, while you basically fight against a part of you that does NOT want to advance or meditate. And this conflict may bring to a feeling of "I want to die" because the part of the mind NOT willng to advance, would see death as the en of pain of this battle, or also, the end of your efforts to drag yourself into meditation and spritual elevation.
SO if you stop your life, you basically loose against a part (programmed by the enemy) wanting you to fail and bring you to square one, a programmed and somehow "easier" existence in the form on being ignorant and not striving towards the Gods.
I did want to die at 18 years old, if I did, I would never have found Satan and this wonderful and magick JoS community. I would have been reincarnated into another life of suffering and spiritual slavery as, through NOT killing me, I am slowly liberating myself from a spiritual cage and I am ging upwards towards the Gods. This gives meaning to life.
I know how this can be difficult.
This gave me some hearth pain too; this can be a medical problem you need to address, but also a heavy conflict at the level of the Hearth Chakra involving repressed emotions, etc. Strong pressure from energies seems physical ache, sometimes.
Reading the the Mein Kampf by Adolf Hitler, he related, he struggled for most of his youthness a mind battle with himself, and one day he finally reached the point to see the jews as they really are: the disgusting enemy. He overcome internal (and enemy) obstacles. What a big noble and e enormous effort he did after reaching this point !!! Imagine if he was dead before reaching this climax: a wasted life. Hitler lived a difficult life, before reaching the top. But he did not give up!