Even though Tottenham's performance this season has been very erratic, I agree with you that Tottenham will not be relegated. Tottenham are still very likely to win more than the next 5 remaining matches, meaning they still have a big chance of staying in the Premier League even though they cannot be in the European zone. Tottenham can still qualify for Europe if they can win the Europa League title this season, but many people may doubt it.
There are several difficult matches that might result in Tottenham losing points, including against Chelsea, Liverpool, Nottingham and Aston Villa. For other matches, I think Tottenham can win or draw.
You are right, even though Tottenham is currently ranked 14th in the English league and its performance can also be said to be less than good, but it seems that Tottenham will not enter the relegation zone this season. Because currently Tottenham has a very large points difference with the team ranked 18th, namely Ipswich. The point difference is 17 points. So if you look at it, it seems that Tottenham is currently still in a safe position in the English league, because most likely Ipswich will also have difficulty winning and reducing the points difference with Tottenham. That is why Tottenham can indeed be said to be impossible to enter the relegation zone.
But if we talk about Tottenham's potential to enter European competition for next season, I think the potential is really a bit difficult. Because the possibility of finishing in the top 7 in the English league I think is something that will definitely be difficult for Tottenham with its current performance. Then in the European league, I think Tottenham's potential to win is also very small. Because currently the team that Tottenham will face certainly has great performance. Therefore, Tottenham this season may not get any achievements, maybe finishing in 10th position is something very positive for Tottenham. Because as you said in the English league there are several teams that will certainly make it very difficult for Tottenham to get 3 full points. And besides that, when playing against a weaker or equal team, Tottenham cannot be sure of winning. That's why I said that being able to finish in 10th position is a very good thing for Tottenham.