Does it get easier?

So my S/O and I have only been ttc for like 6 months now and I'm really getting discouraged already. My S/O and I are 18 years apart. He's 40 and I'm 22. I feel his age is the barrier on us ttc. I have a 3 year old and he was so easy to conceive (From another man). I just wish it was that easy again😭😭😭😭. Does it get easier? Any tips that don't get to costly?