It's quite an open ended set of reflections this, but one take on it might be that you think that "truth" represents a value system that says one can only count on the things that one has proven. This value system would be comparatively debilitating if one could only act on the things that one could prove to be true.
That's actually not a terrible evaluation of some forms of talking about logical truth. For British philosopher Michael Dummett (IEP article), Proof was very much the mechanism by which the logical connectives received their semantic sense - the reason a sentence like "A AND B" is true, if it is, is that the two separate proofs for A and for B can be combined as a proof of "A AND B".
It's one thing to say, however, that Logical deduction works like that, and another to say that this is all there is to say about Truth. One could be a verificationist, that what constitutes the truth of a statement is what it would take to verify that statement or demonstrate its truthfulness. We might say that things are true (or not true) in as much as there is a way to show that they are (or are not) the case, and about much else we must suspend judgement until such demonstration can be given in concrete terms, or dismiss as meaningless if no such demonstration is even in principle possible.
But there's also a kind of pragmatist element to this - that statements are not only to be shown to be true through demonstration, but also that statements have a practical use, and this usefulness is also a contributing part of what it might take for a statement to feature in proofs and demonstrations. Where the verificationist would take the demonstrations of truth as prior, a pragmatist might take this same line but with a posterior conception of such demonstration - some principle might be true because it is a principle that gives rise to the demonstration of valued consequences.
The problem, of course, is that one could simply presume whatever things one wanted to be true, and this has a tendency to come apart not only from reality but from coherence and from rationally predicable relationships between component parts of reality. Logic, where it is useful, is about the way in which the relational, compositional structure of our propositions about the world connect and relate together to one another. And so while the Verification-only principle might be too conservative a principle for logical understanding, the Consequences-only principle is too liberal.
For Dummett, the point about a coherent, real logic was that logical principles about how the premises of a logical connection are joined together in logical constructions (the introduction rules) and about how those logical constructions combine to allow the evaluation of distinct conclusions from those constructions (the elimination rules) had to in some way connect to each other in the right way. This is what Dummett called the idea of Logical Harmony - that meaningful, logical Truth related both the verificationist and pragmatic aspects of truthful practice through meaningfully constrained definitions of its connectives. One can show that something could consistently be the case, using the same logical principles as we use to demonstrate that something is an existing consequence of what has been shown to be the case, as long as the former and latter mechanisms of our logic are in harmony with one another.
Dummett himself was a fairly conservative thinker, and very much favoured the "introduction-rules first" verificationist model of logic. But this is by no means the only way to take his idea of truth as a value system where one can apply the concepts of proof and demonstration - one can make something true by acting to bring about its consequences, just as one can show something to be true by demonstrating it from prior grounding.
Of course, the more practical mode often takes a bit more courage, but you don't need to see this courage as a deviation from concepts of truth in order to find it in yourself! Things you make happen can be just as true as the things that happened before you. There's less certainty in it, to be sure, but that doesn't mean it's not true - just that the proof of its truth is something you've got to work on yourself rather than something you can expect to be given to you already fully formed by others.