An aniseed flavoured mineral block or two are useful to bring deer in. Put them in the middle of your ground. Also keep some areas towards the middle as sanctuary areas - typically areas of woodland and close to the buildings. Don’t shoot deer in those areas. Shoot deer out in the fields and towards the edge of the ground.
As others have said, be selective in what you shoot. Good does with twins of good size are prime breeding stock - these absolutely should be left alone.
Up to you but would leave the wee spike bucks, unless they are very small. Let them grow another season and see how they develop. I think the venison on a young but mature buck is much better than that of last years fawns.
With the youngsters - males and females, if they are scruffy, thin, small etc the will never come to much so shoot those. Also anything that looks lame.
If you do shoot a doe, look for one without a youngster - for whatever reason she hasn’t produced / reared one - a good one to take.
Mature bucks - let them get well mature before you shoot. Older bucks start drooping at the neck and rump. Antlers will grown together at coronets, be tall but will be getting thinner. I would sparingly take these. Old bucks hold terratories and keep young ones at bay. Shoot the old ones and lots of youngsters and fray everything.
Typically of 500 acres you can take 3 or 4 a year, or about 25 to 30% of the numbers.