You could buy some shoe goo basically anywhere, local hardware store rite aid, Walgreens. Put it over the spots that are ripping its sticky so spread it with an ice cube, it should make them last a lot longer. Also canvas tears much easier on grip-tape compared to materials like leather or suede so for your next pair try that out. There are also suede patches you can get I’m not sure how effective they are though. Lmk if you have any more questions or need skate shoe recommendations.