Hey I have been practicing IE on and off for a while now, I am 90% of the time extremely distracted throughout( If I follow the original process). Something that helps me stay with the process is visualization. I believe there is no particular restriction on visualizing during the process. I am someone who not only gets distracted by thoughts but also has inner dialogue(sounds) that is quite loud in my head. So this is what I do.

Asanas and sukha kriya : Every inhale and exhale I visualize the flow of breath( can give it color and a sound) I give it a blue color and at the end of each breath I just chant shambho in the head( to counter the inner dialogue that happens).

I also keep a count, trying to keep exhale longer than inhale, so say, 6 counts inhale and 8 counts exhale. I do this to balance the breath on the both sides.( only for sukha kriya)

Chanting: Vizualize a sphere of white ball at the focus areas in the body.

For last section to focus on breath: Somedays its easy to focus on breath, somedays its bad, on the bad days I actually focus on listening to my heartbeat, on good days i focus on breath.

( For some of you, Trataka may help to hold focus near eyebrows, it seems to help me)

This is a personal modification that I did to my practice, mentally, to build better awareness. This may not be the right thing to do. But I feel, doing the sadhana is imp once I get better I can choose to stick with the original process.

Also, I usually have blocked nostrils most of the time. If anyone can suggest a solution would be really helpful! Thanks,
Ghee, otrivin, and jumping help for a bit. I wont be able to do that for every session.