I suppose it comes down to probability. I think we all need to decide on what we want in life. Then, how realistic it is we'll be able to get it and if we are willing to compromise for less. But- it takes effort and resilience and I think only we know how much of either we have left.
Hope is the spark though. The motivation to consider trying. I guess none of us really know whether it's false hope. If there's any chance of getting what we want. I expect there often is a chance but it relies on the above things. You won't have a chance of winning the lottery if you don't buy a ticket! Most things in life seem to require vast amounts of effort and resilence to keep going, even if we aren't initially rewarded.
So- it kind of depends on our circumstances and what we are willing to put ourselves through. People wanting partners, careers, money need to put themselves out in the world to try and attract those things. Obviously, the probability of making friendships/ relationships increases with the more people you try to socialise with. The probability of getting a job/ career increases with the more training/ experience you get and the more jobs you appy for. Neither are guaranteed though.
Plus, we probably are suffering with various hangups that make certain things too scary/ difficult to face. For me- my sense of social anxiety is worse than feeling lonely. So- then you kind of have to decide on whether you are deliberately going to let certain things hold you back in life. I find I do it willingly now because it's the more comfortable option.