I live a 13-17 hours trip by boat (or about an hour by a currently unaffordable plane) from my teachers. I go once or twice a year, overdose on Dharma and go back to recoup for 6 months. Having started ngondro I have more than enough Dharma to deal with on a daily basis. I am sure the dathun will give you plenty of material.
Don't rush finding a teacher. Check out as many as you can until you find the one(s) that click.
The 35 Confession Buddhas practice (a sutra practice) will help clear out obstacles due to past karma and does not require tantric initiations etc...
Calling the Lama from Afar, although considered by some as purely a lineage prayer, is a plea for all the lamas of all the lineages to heed you.
Both these practices certainly helped me.