Feeling needy

Hello everyone, I am struggling with what I think is an unreasonable feeling of neediness towards my children. I don’t really know when this started but I suspect that a loss of confidence as I have got older coupled with my children having busy lives meaning that I am not very involved in their every day lives. I have 2 children both with children. My daughter lives about 30 minutes away with grandchildren of 13 and 15 and my son lives in Australia with 2 children of 6 and 7. Obviously as a result of the pandemic I haven’t seen them for 2 plus years although speak to my son on face time most weekends. The children sometimes come and speak but it is very difficult with the time zone and basically they are busy doing other things. My daughter has a full time job, the children are busy with clubs, sports etc which I completely understand but I really struggle to try and take a step back. I am married to a wonderful man (2nd marriage of 20 years) and we have a nice life (both in our sixties) and keep as busy as possible. I really miss my family (their father has passed away) but I would like the contact to be instigated by them instead of me “pushing” things. For example I usually speak to my son on a Sunday, the call instigated by me. Today I thought I would wait for him to call so far he hasn’t and as the time goes on it will get later in the evening in Australia and the opportunity will be lost. This causes me constant anxiety. Am I being unreasonable?