Do time, space and our minds really limit us?
Time and space are no more than ideas, concepts, constructs. Even though they may be useful ideas, without your memory, a mental process, you can not even think about time.
A limit exists also as an idea, a concept, a construct. Without space and time, also mental constructs, you can not even think about limits.
The idea of time as a limit is similarly a thought.
Your mind is also no more than an idea. Nobody has ever seen one.
Remember that existence and non-existence are also just ideas, not real.
In reality, in the unconditioned mind, we find none of these. We do not even find their absence. So maybe you can forget the whole thing. Look after yourself, look after others and live your life fully. That seem to be important. Leave the rest to the philosophers who enjoy such questions and discussions. That is their way of enjoying life.