[SDCBC] Sorrento Valley Advice Please

[fuse at san.rr.com]

I am a fairly new commuter looking to ride across Mira Mesa to my workplace in Sorrento Valley.  Most of my route travels westbound down Mira Mesa Blvd. and my destination is on Sorrento Valley road on the left-hand side, immediately after the I-805 freeway underpass.  

Here two lanes are turning right onto the freeway and the bike lane stops.  This route is listed on the Ridelink Bike Map, so there must be some way to do this safely?

What is the safest way to navigate onto Sorrento Valley road from Mira Mesa Blvd. in rush hour traffic?  I have a similar problem with the 2 e/b lanes turning onto I-805S on the return trip.

Thank you for any advice.
Elaine L.