doing ineffective things is not the same as not taking yourself seriously.
in general, what sort of physical activity is good for you, how to get started, how to progress, and so on are all pretty well understood. not only that, it is all pretty straight forward.
whether at working out or anything else (e.g. learning to program or learning the banjo) you should worry about doing it effectively. get the brush strokes of that right -- it is much easier to stick to something you see yourself improving on.
taking yourself seriously are things like thinking that if you miss a workout day your regime is ruined, obsessively counting your calories, etc. avoid that.
in general, what sort of physical activity is good for you, how to get started, how to progress, and so on are all pretty well understood. not only that, it is all pretty straight forward.
whether at working out or anything else (e.g. learning to program or learning the banjo) you should worry about doing it effectively. get the brush strokes of that right -- it is much easier to stick to something you see yourself improving on.
taking yourself seriously are things like thinking that if you miss a workout day your regime is ruined, obsessively counting your calories, etc. avoid that.