Ok, let's try this stuff out!!

I'm new to TTC. My husband and I finally have decided that we are ready for an addition. We have ALWAYS used Astroglide and after a few months of BFNs we quickly realized that this TTC is harder than we thought. It doesn't "just happen" like we thought. Lol. Sooooo has anyone used preseed and is it worth it!?? Does it really help?? I'm tired of seeing negative tests. Anything else that I should be doing or changing to help me conceive? I should have known this was going to be difficult I have a history of severe endometriosis and cysts.