Feeling the strain

Do you ever just feel like it's not meant to be

I'm 34 , 35 in November

Me and my husband have been TTC for two years

I've got endometriosis and we have started fertility process . We live in the U.K. So it's free but it's a long process

We had to be trying for at least a year , have the correct BMI , blood tests and sperm test . Now we wait, and we will likely to have IVF because of my endo .everyone I know have at least one child.

My husband is amazing but I just feel really sad . I'm a mega positive person and always try to be optimistic but this past two months I'm just so sad and desperate for it to be our turn .

Any advise