Tips on trying to conceive a girl after 3 boys

I'm a mother 3 boys; and the boys and I are desperately want a girl. I recently experienced a miscarriages on my 4th pregnancy November 6 at 10 weeks. At 12 weeks, everything was finalized that I lost baby. I chose not to know the sex to help me heal and to not hurt myself more; specially, if it was a girl. Dr. told me to wait 2 months to try again, and now I need the extra tips on how to conceive a GIRL. I've done my research and know about the shadow method , boy sperms swim faster and die faster and girls sperm do the

opposite, I know about have sex 2 to 3 before ovulation, eat acidic food and do magnesium diet. beside these strategies that I've mentioned, is anyone has anything else I can add or do?