Wow. You already decided to give up. Wow. That is the right attitude.
Do you think they all started to breed rare Tarantulas from the get go? I have had two egg sacks. The first was infertile, and the second was a young female who's egg sack had loads of dead eggs making more than 3/4 of the eggs not viable only 7 of the eggs are now N1's. But what I am trying to say is to never give up. Trail and Error. Do the research. Subscribe to other forums Journals "the British Tarantula Society - journals" / ARACHNE -a German journal and read about all the articles they have in the journals. Breeding hiccups are just obstacles, which means that with time and trying again and again you will one day succeed. Conclusion being see this as a challenge.
Imagine your self writing your first breeding report and uploading the photo's

Success ! Who cares what you breed first. I started with H.incei "infertile egg sack" and G.rosea (rcf) with my 7 N1's. I have learned my lesson and have done all my research now, and I will try again. I have 2 more gravid females