Can soumya deities become ugra for spiritual development?

I am doing upasana of 3 soumya deities + bhairava as part of my nitya sadhana. I invest most of my free time into doing my nitya sadhana. Can I just ask my soumya deities to accelerate my spiritual path?

If it is necessary to worship ugra devtas then I'd have to reduce my time with my soumya deities as I dont have much free time. It would be a little difficult for me to do that as I very dearly love my deities and they love me back (I feel their love and bliss occasionally). 

Thank You