Venus the main planet for marriage along with 7th lord mercury for your lagan and its strong by exaltation though is conjunct saturn
The 7th lord mercury is retrograde in house 8 in raasi and with venus the 6th lord making delays or difficulties yet mercury is in own star and having good ishtakashta phala and also 7th lord in navamsa chart…..can help in marriage matters.
Rahu occupying lagan is one weakness but its being in guru star the lagan lord is strong point and give some relief.
How ever there are chances for marriage between oct 2017 till march 2018. As Jupiter comes to dhanus raasi your lagan on natal rahu .giving strength to lagan till sept 2018.
So intensify your Groom search from Now on wards.