Build yourself up with hatha yoga, planetary energies and runes. Clean aura every day at least twice. Do final Ritual. Not to forget physical exercise outside of hatha yoga.
You're draining too much fiery energy from your sacral chakra and are in a consistent state of low power for it as this energy escapes upon climax unless directed otherwise. You need to refrain. If the pent up sexual energy is too much you can direct it up from your sacral chakra to rise to the pineal gland, when done correctly this removes the arousal and you won't feel the need to masturbate. Just visualize the sexual energy rising up through your chakras to go into the pineal gland.
You can refuel after climax by spiritually focusing where your sacral chakra is located and engulfing it with vibrant orange coloured energy or breathing in fiery orange energy directly into your sacral chakra like the methods of the foundation meditation. If this feels pleasant and positively releiving then you're doing it correctly.
Also you can clean the sacral chakra with the SOWILO rune as well and visualize it's white-gold solar energies completely burning away and dissolving any and all negative energies and blockages. This can help loosen and or rid yourself of sexual hang-ups on the chakra.
There have been some good tips about this problem you are facing, But there is a meditation/magic working that i know of that could be of help. I found it some time ago but i don' t remember where... It was either the jos main site or in some sermon.
This working will empower your soul when ejaculating instead of wasting the energy.
When ejaculating visualize the energy that releases as a white/golden ball of energy, Now move this ball of energy from your base chackra all the way up to your crown chackra (When doing this the ball of energy will pass trough every other main chackra). Once the ball reaches the crown chackra move it up to the 8th main chackra (Its just above your head) and extend the chackra to form a ball of light with a diameter of about 1 meter.
Now move the energy from the the 8th chackra down to your feet and from your feet back to the base chackra. Do this 2 - 5 times.
If i missed something please correct me.
Note: This will only use the energy from the ejaculation that would otherwise be lost, Bad masturbation habits should be avoided just like other brothers and sisters have been telling you!