i can see both sides to this, but agree most with what Grandetante said.
customs change. people are busy. don't give if you do it on condition of thanks.
you cannot impose a debt on others unilaterally.
some think a gift inherently imposes a debt of gratitude which must be expressed. else the recipient commits a grave offence.
but this is not a universal moral code. it may have been customary practice when you were young. but for whatever reason, it is not so now.
so if it bothers you, don't give.
some of these sound like a desperate attempt to establish or maintain a connection. perhaps the other party does not feel the same. maybe this gift-giving means far more to you than it does to them. maybe they are indifferent. maybe they wish you would stop.
these are all possibilities. i don't know. but some of them strike me a emotionally manipulative: look at all the effort i've gone to, so you are duty bound to give me something, your time, attention, gratitude, a sense that i matter to you, am important. but frankly maybe that is not the case. no ill-will but not in the circle of main importance either.
don't want to be harsh, but some people set themselves up for disappointment.
sorry to be curt, but am trying to avoid rambling. so bullet points. let us all try to be happy, or content.